percentages and Interests

1. If $1 were invested at 8 percent compounded annually, the total value of the investment , in dollars, at the end of 6 years would be

(A)  (1.8)⁶       (B) (1.08)⁶       (C)  6 (1.08)      (D)  1 + (0.08)⁶      (E)  1 + 6(0.08)

2.  A $500 investment and a $1,500 investment have a combined yearly return of 8.5 percent of the two investments if the $500 investment has a yearly return of 7 percent what percent yearly return does the $1,500 investment have?

(A) 9 %        (B) 10 %       (C)10   %     (D) 11 %     (E) 12 %