The square on the right is a scaled copy of the square on the left. Identify the scale factor. Express your answer in simplest form. 65
65
39
39

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Asporting good store is offering 30 percent off of the original price(x) of football cleats. the discount will be reduced by an another $7 before sales tax.

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)