Ryan is building a treehouse. It will take 71 ¼ hours to complete. He can work on the tree house 16½ hours each week. To the nearest tenth, how many weeks will it take Ryan to complete the tree house?

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50