How much will you need to invest today to get the following cash flows at a discount rate of $8\mathrm{.}25\%$: $(2$ points$)$

Y$1$: $$1,500$

Y$2$: $$1,700$

Y$3$: $$2,500$

b$)$ What is the total value of the cash flows given in $($a$)$ at the end of $3$ years at a discount rate of $6\mathrm{.}2\%?(2$ points$)$

c$)$ Alfred has the option of choosing between two savings accounts one with which pays $7\mathrm{.}15\%$ with quarterly compounding and another with $7\%$ with monthly compounding. Which account should he use? $(2$ points$)$