Score: 0 of 1 pt 18 of 19 (13 complete) W Score: 65.79%, 12... P5-52 (similar to) Question Help Rate of return Personal Finance Problem Rishi Singh has $3,200 to invest. His investment counselor suggests that Rishi should buy an investment that pays no interest but will be worth $4,200 after 6 years. a. What average annual rate of return will Rishi earn with this investment? b. Rishi is considering another investment, of equal risk, that ears an annual return of 2.64%. Which investment should he make, and why? %. (Round to two decimal a. The annual rate of return Rishi will eam with this investment, r, is places.)