Sierra has enough fencing to make the three chicken coops shown. Each has the same perimeter. Which has the greatest area?

Find the measures of the complement and the supplement of each angle, m

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?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?