If, in today's respective markets for one-month, three-month and six-month mortgage coupon payments, trading determines a market price of ninety-nine and one-half ($99.50) dollars per one hundred dollars of coupon payment receivable in one month, ninety-eight and one-fourth ($98.25) dollars today per one hundred dollars ($100.00) of coupon payment receivable in three months, and ninety-seven and one- fourth ($97.25) dollars per one hundred dollars ($100.00) of coupon payment receivable in six months. a. Calculate the respective net and gross values of the current market rates of interest and discount on these one- three- and six-month coupon payments. " b. Using English only, state the definitions of the respective market values of the interest rate and the discount rate, in the case of the six-month coupon.