Miss white wants to crochet beach hats and baby afghans for a church fundraising bazaar. She needs 7 hours to make a hat in 3 hours to make an afghan she has 39 hours available. She wants to make no more than 9 items and 10 afghans. The bazaar will sell the hats for 21 dollars each and the afghans for 5 dollars each . How many of each should she make to maximize income for bazaar to sell? What is maximum income?