Walt is evaluating an investment that will provide the following returns at the end of each of the following years: year 1,$12,600; year 2 $10,100; year 3,$7,600; year 4,$5,100; year 5,$2,600; year 6,$0; and year 7,$12,600. Walt believes that he should earn 12 percent compounded annually on this investment. Required: a. How much should he pay for this investment? b. How much should he pay if he expects to earn an annual return of 9 percent compounded monthly? Note: For all requirements, do not round PV factors and round your other intermediate calculations and final answer to the nearest whole dollar amount