P = $12,000 a ) A = P * ( 1 + r ) ^n r = 0.0399 : 12= 0.003325 n = 8 * 12 = 96 A = 12,000 * ( 1.003325) ^96 = $16,503.58 b ) r = 0.04 : 4 = 0.01 n = 4 * 8 = 32 A = 12,000 * ( 1.01 )^32 = $16,645.29 c ) r = 0.04175, n = 8 A = 12,000 * ( 1.04175 ) ^8 = $16,645.20 d ) r = 0.042 I = 8 * 12,000 * 0.042 = $4,032 A = P + I = 12,000 + 4,032 = $16,032 Answer: The investment that will earn the most money is: C ) 4.175 % compounded annually.