Prove for any value of y the value of expression y^4 - (y^2-9) (y^2+9) is divisible by 9.

What is the answer for 2:x = 6:3

The tires of a go-kart are 1 m in circumference. The tires revolve 15 times per second. Wat is the distance the go-kart travels in 40 seconds

What is the median of the data represented in the box-and-whisker plot? A. 21 B. 30 C. 37 D. 41

The Henderson family and the Tran family each used their sprinklers last summer. The Henderson family's sprinkler was used for 15 hours. The Tran family's sprinkler was used for 40 hours. There was a combined total output of 1800L of water.

At the pet shelter for every 7 dogs there are 4 cats what is the ratio of dogs to cats

2 5/16 divided into 7/8 equals what

The perimeter of a rectangular garden is 52 feet the length of the garden is 4 less than twice the width what is the widththe

A shopper wants to ensure she has enough cash to purchase a $25 cell phone, so she asks a clerk what the total will be with the sales tax included. The clerk tells her the total will be 27.25. What is the sales tax percentage?

What is the unit rate of five and 15?

The function f (x) = 6x + 5 is one-to-one. Find an equation for f ' (x), the inverse function.