1. For her 1st birthday, Ruth's grandparents invested $1000 in an 18-year certificate for her that pays 8% compounded annually. How much will the certificate be worth on Ruth's 19th birthday?

2. To help their son buy a car on his 16th birthday, a boy's parents invest $7500 on his 10th birthday. If the investment pays 9% compounded continuously, how much is available on his 16th birthday?