Julio invested $2,000 in a simple interest account for 3 years she had earned $150 in interest by the end what was the simple interest rate of the account

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?

The graph shows the function f(x) = (2.5)x was horizontally translated left by a value of h to get the function g(x) = (2.5)x–h.

Someone answer this check out the image!