a. Find the present value of the following annuity due: $850 per month, for thirty years, at 12 percent simple rate. Do not write any symbol ($, #, &,...). Round your answer to the nearest one-hundredth percentage point. For example, write 1125.34 for $1,125.34.

b. You deposit $650 every six months in your saving account. The deposits are made at the beginning of the periods. If the interest rate is 9.25 percent, how much can you withdraw at the end of 22 years? Do not write any symbol ($, #, &,...). Round your answer to the nearest one-hundredth percentage point. For example, write 1125.34 for $1,125.34.