Answer:
Future Value formula = Amount * ( 1 + r) ^ no.of periods
a. Future Value = 130 * ( 1 + 7%) ^ 10
= $255.7296
= $255.73
b. Future Value = 130 * ( 1 + 7%) ^ 20
= $503.05898
= $503.06
c. Future Value = 130 * ( 1 + 3%) ^ 10
= $174.709
= $174.71
d. Future Value = 130 * ( 1 + 3%) ^ 20
= $234.794
= $234.79