Question 12 (1 point) Your grandmother invested one lump sum 42 years ago at 2.5% interest. Today, she gave you the proceeds of that investment which totaled $28,204.32. How much did your grandmother originally invest? $3,400 $6,650 $6,950 $9,998 None of the above Question 14 (1 point) Sarah invests $3,000 in an account that pays five percent simple interest. How much more could she have earned over a seven-year period if the interest had compounded annually? $122.20 $129.20 $147.80 $171.30 None of the above