It took an airplane 3 hours to fly 1,260 miles against a headwind. The return trip with the wind took 21/3 hours. Find the speed of the plane with no wind and the wind speed.

A florist makes large bouquets and small bouquets. The workers can make at most 500 bouquets per day. Each large bouquet requires 80 flowers, and small bouquets requires 40 flowers. There are 1500 plants available. The income from each large bouquet is $250 and from each small bouquet is $125. How many of each size bouquet should be made to maximize income?