You grow a tree that is 42 inches tall. After one year, the tree is 47 inches tall. Which expression describes the percent increase of the trees height?

A: 47-42/47

B:42/47x100

C:47-42/42x100

D:47-42/47x100

Super-Mart has stores in four locations in State A. Super - Mart plans to reapportion its 27 managers based on the number of employees in each store as shown below. Find the standard divisor and each stores standard quota. A. 79 B. 90 C. 131 D.

A psychologist regularly runs rats through a maze and records the amount of time it takes them to finish. One hundred rats were run through a maze and they averaged 20 seconds with a standard deviation of 5 seconds.

A contractor records all of the bedroom areas, in square feet, of a five-bedroom house as: 100, 100, 120, 120, 180 What is the variance? What is the standard deviation? DONE

Does the sign need to flip when solving? -2x = 22

A division equation with the answer of - 20

The length of a rectangle is seven units more than it's width if the width is doubled and the length is increased by two the area is increased by 42 square Units find the dimensiones of the original rectangle

If 6a=5b, what are the following ratios? a:b

D (1) = 3 D (n) = d (n-1) - 14

Mariana runs at a rate of 300 meters how far does she run in 8 minutes

What is the answer? 2/3x is not equal to 1/2+2