If f(x) = x + 4 and g(x)=x^2-1, what is (g o f)(x)?
x^2-1
x^2+8x+16
x^2+8x+15
x^2+3

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?

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.