Mary is taking out a loan to buy a $3,000 engagement ring. If she takes out a 5 year loan with a
4% interest rate that is compounded quarterly, how
much will she end up paying for the ring?
Formula:
A=P(1 + r/n)^nt

Having a hard time understanding this question (see attachment).

Which of the following best describes the graph below? + + 2 + 3 + 4 1 o a. it is not a function. o b. it is a one-to-one function. o c. it is a many-to-one function. o d. it is a function, but it is not one-to-one.

How many zeros does this polynomial function, y=(x-8)(x+3)^2