What is the formula for 'percent of change'?

Evaluate 3r³+5,when r=2

hallllllllllllllllllllp

Help pleaseeeeeeeeeeeeeeeeeeeeeee

2 x 10^5 standard notation

In Mrs. Stone's class, 18 out of 22 students turned in their homework on time. What percent of the class turned their homework in on time? Round your answer to the nearest 10th place.

please help me with this IXL i only have an hour like i said on my last question and please tell me how to get the answer so i can do the IXL on my own plz!

A car made a 60-mile trip at an average speed of 20 mph. On the return trip, the car's average speed was 30mph. What was the average speed of the car for the entire two-way trip?

A) 30 mph
B) 26.5 mph
C) 26 mph
d) 24 mph

please answer this one

A case of 11 dozen place mats costs $23.76. What is the cost for one place mat?



$0.02


$0.18


$0.22


$2.16

Moving at a constant rate, a trench machine is advertised as being able to dig 36-foot trenches in 40 minutes. A farmer uses the same machine to dig trenches that are 58.5 feet long, with each trench taking 65 minutes to complete.

Help Me plzzzzzzzzzz

What is the image of the point (-6, 8) after a rotation of 90o clockwise about the origin?

*Think about which quadrant the point started in and which one it will be in after the rotation!*

WILL THANK, GIVE BRAINLEST, AND GIVE FIVE STARS TO FIRST AWANSER IF IT'S RIGHT
q1:how many baby elephants were weighed

q2:Which group weighed the most per item on the scale? How much did it weigh?

q3:Which group weighed the least per item on the scale? How much did it weigh?


You dont have to show your work

plz need help and sow work plz

2.An underestimate results from rounding each factor to a greater number. Which answer is it

-Always
-Sometimes
-Never

A rectangle has side lengths of 6 cm and 9 cm. What would the side lengths of the image be after dilation of 2.25? Explain your reasoning. PLS HELP DUE TODAY

two ratios that are equivalent to 6:10

BRAINLIEST AND 13 points plz help ASAP
A student writes an incorrect step while checking if the sum of the measures of the two remote interior angles of triangle ABC below is equal to the measure of the exterior angle.
In which step did the student first make a mistake and how can it be corrected?
Step 1; it should be m∠m + m∠n + m∠o = 180 degrees (sum of angles in a triangle)
Step 1; it should be m∠m + m∠n + m∠o = 90 degrees (adjacent angles)
Step 2; it should be m∠o + m∠p = 180 degrees (alternate exterior angles)
Step 2; m∠p − m∠o = 90 degrees (alternate interior angles)

A cylindrical water tank is being filled with a hose. The depth of the water increases by 114 ft per hour.

How many hours will it take for the water level in the tank to be 312 ft deep?

Enter your answer as a mixed number in simplest form

A conversion table indicates that 1 mile is 1.6 km. With this conversion rate, is the speed limit greater than or less than 65 mph? Explain.

What is the slope of y=6x+2?
Answer: __________

What is the equation of this line? Please help I will give extra points and the brain thing.

y=−3x−4/3

y=4/3x−3

y=3/4x−3

y=−3x−3/4

please helpppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppmee

Allison bought three pounds of strawberries for $19.20. What is the price, in dollars per ounce of strawberries?
1 pound = 16 ounces
Before you try that problem, answer the question below.
How many ounces of strawberries did Allison buy?

Please help me I will give out the brain thing and extra point, please. Image below
△ABC and △CDE similar right triangles. The coordinates of all the vertices are integers.
A. The slope of AC¯¯¯¯¯ is less than the slope of CE¯¯¯¯¯ . This is because the ratio of the change in y-values of the endpoints to the change in x-values of the endpoints is less for AC¯¯¯¯¯ than for CE¯¯¯¯¯ .
B. The slope of AC¯¯¯¯¯ is greater than the slope of CE¯¯¯¯¯ . This is because the ratio of the change in y-values of the endpoints to the change in x-values of the endpoints is greater for AC¯¯¯¯¯ than for CE¯¯¯¯¯ .
C. The slope of AC¯¯¯¯¯ is equal to the slope of CE¯¯¯¯¯ . This this because ratio of the change in y-values of the endpoints to the change in x-values of the endpoints is the same for AC¯¯¯¯¯ as for CE¯¯¯¯¯
D. The relationship between the slope of AC¯¯¯¯¯ and the slope of CE¯¯¯¯¯ cannot be determined, because the triangles are congruent.

which one pls HELP PLSSSS

PLZ HELP I NEED WORK PLZ FAST Write the given equations in STANDARD FORM.
1) y + 4 = ½ (x – 4)
2) y = 2x + 3/7
(Just in case: Ax + By = C
A is positive
A and B are not 0
B can be negative
A, B, and C are integers)

Which expression shows π(2r)² in simplest form?

Juan and Gloria are comparing the two numbers 354.6 and 354.06. Juan says that 354.06 is equal to 10 x 354.6. Gloria says he is wrong. Do you agree with Juan or Gloria? Explain your thinking.

The length of a rectangle is 3 meters more than the width. The perimeter of the rectangle is 26 meters. If the width is b, which equation represents the situation? How many solutions will this equation have?
A. (b + 3) (b) = 26, which has one solution
B. 2(b + 3) + 2b = 26, which has infinitely many solutions
C. 2[(b + 3) + b] = 26, which has one solution
D. 2[(b + 3) + b] = 26, which has no solution

he graph shows the number of boxes a machine package over time is the relationship proportional how many boxes does the machine package in 4 minutes