#24 please

Sammie Crass inherited $16, 780. She wants to invest it in something relatively safe so that she can transfer all the money to her children's college fund in about 8 years. One investment brochure (called prospectus) states that it will pay a return of 8% compounded quarterly. How much will Sammie have in total, principal plus interest, after 8 years? To help his daughter and son-in-law purchase their first new car, David Lo loans $12,000. They agree on an interest rate of 3% compounded annually, and Mr. Lo tells them that they can pay the is all luck, the $12,000 plus the interest, in 5 years. How much interest will Mr. Lo receive from them? Sandee Millet owns and operates an art supply store in a suburban shopping center. Sandee learns about an investment that claims to pay a return of 8% compounded semiannually for 4 years. Sandee decides to invest $4, 750. Compute the amount of interest that she earn in the 4 years. Ken Couch is a student at medical school. He borrowed $24,000 for 18 months at the rate of 9% compounded monthly. How much in total, principal plus compound interest, must ken repay at the end of the 18 months? The County Employees Credit Union pays an interest rate of compounded quarterly on savings accounts of $1,000 or more, with the requirement that the money be deposited for at least 6 months. How much interest will Marilyn earn if she deposits $1, 800 and leaves it in the credit union for 2 years