Asmall business owner made $60,000 the first year he owned his store and made an additional over the previous year in each subsequent year. find how much he made during his fourth year of business. find his total earnings during the first four years. (round to the nearest cent, if necessary.)

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?