13. If you deposit $2,000 at 5% compounded monthly, how much will you have it 10 years? 14. Using logarithms, how long would it take for your money to double? 15. Solve elm(23+1) = 6r for 16. Solve 5% = 3 for r. Write your answer with 4 decimal place accuracy. 17. Solve 2 log(x) - log(r + 1) = 1 hint: first rewrite as a single log, then in equivalent exponential form, then solve a quadratic