A cylinder has a volume of 90pi and a radius of 3. what is the height?

Find the indicated value, where g(t) = t^2-t and f(x)= 1+x a. -2 b. 0 c. 2 d. 8

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.