This Question: 1 pt (Compound value solving for r) At what annual rate would the following have to be invested? a. $520 to grow to $1,212.45 in 11 years b. $310 to grow to $532.64 in 8 years c. $48 to grow to $429.56 in 21 years d. $220 to grow to $312.07 in 6 years a. At what annual rate would $520 have to be inveted to grow to $1,212.45 in 11 years? % (Round to the nearest whole percent.) b. At what annual rate would $310 have to be to invested to grow to $532.58 in 8 years? % (Round to the nearest whole percent.) c. At what annual rate would $48 have to be invested to grow to $429.56 in 21 years? % (Round to the nearest whole percent.) d. At what annual rate would $220 have to be invested to grow to $312.07 in 6 years? Enter your answer in each of the answer boxes. Type here to search