Hector received three A’s and one b in his college course. What is his grade point average? Assume each course is three credits. A=4.0, b=3.0, c=2.0, d=1.0

Your mom is thinking of retiring. her retirement plan will pay her either $ 200 comma 000immediately on retirement or $ 280 comma 000five years after the date of her retirement. which alternative should she choose if the interest rate​ is: a.0 %per​ year? b. 8 %per​ year? c. 20 %per​ year?