What is this number in standard form?
5.75 x 10^9

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

Which of the following represents the range of the graph of f(x) below

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)