exercise c-6 (algo) calculate the present value of a single amount (lo c-3) ray and rachel are considering the purchase of two deluxe kitchen ovens. the first store offers the two ovens for $3,200 with payment due today. the second store offers the two ovens for $3,400 due in one year. required: 1-a. assuming an annual discount rate of 9%, calculate the present value. 1-b. from which store should ray and rachel buy their ovens?