Yankee Athletic Club has preferred stock with a par value of $$80$ and an annual $7\%$ cumulative dividend. Given the following prices for the preferred stock, what is each investor seeking for his or her return?

a$.$ Alex is willing to pay $$35.$

b$.$ Derek is willing to pay $$25.$

c$.$ Marcia is willing to pay $$20.$

d$.$ Johnny is willing to pay $$10.$