a. Find the future value of the following annuity: $450 per quarter, for twenty years, at 10 percent simple rate. Do not write any symbol ($, #, &,...). Round your answer to the nearest one-hundredth percentage point. For example, write 1125.34 for $1,125.34.

b. An investment promises to pay $650 per week for fifteen years. If the interest rate is 11.25 percent, what is its fair value? Do not write any symbol ($, #, &,...). Round your answer to the nearest one-hundredth percentage point. For example, write 1125.34 for $1,125.34.