The scale factor of two similar rectangular prisms is 4. The surface area of the smaller prism is 20 ft?.
a.
100 ft
C. 75 ft?
b. 135 ft?
d. 320 ft

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?