Factorize 9 (a+1) ^2-81

Determine which relation is a function. A. { (1,2), (2,3), (3,4), (4,5) } B. { (2,2), (3,2), (4,2), (1,2) } C. { (5,7), (5,8), (5,1), (5,3) } D. { (1,2), (5,8), (1,4), (3,8) }

a store has 800 T-shirts if 40 of the t-shirts are a size small what percent of the t-shirts are small

How do you convert 0.40 into a fraction

The information for two pay as you go cell phone companies is given. On cell 3.5 hours: 10 dollars. Talk time half an hour: 1 dollar and 25 cents. What is the unit rate in dollars per hour for each company?

What is the answe to, 81^-1/4

Which resource is both renewable and inexpensive?

What is y=2x+1 and y=-1/2x+6? The 1/2 is a half ... just saying so you don't confuse it with division!

Forty-threeless then the twice a number, n

If h=11 units and r = 2 units then what is the approximate volume of the cone

What's the difference between linear and non linear functions