If you invest $15,250 today, how much will you have: calculator methods. a in 7 years at 9 percent? (Do not round intermediate calculations. Round your final answer to 2 Use Appendix A as an approximate answer, but calculate your final answer using the formula and financial decimal places) Future value b. In 18 years at 7 percent? (Do not round intermediate calculations. Round your final answer to 2 decimal places.) Future value c. In 18 years at 10 percent? (Do not round intermediate calculations. Round your final answer to 2 decimal places.) Future value In 20 years at 10 percent (compounded semiannually)? (Do not round intermediate calculations Round your final answer to 2 decimal places.) Future value