You work at an Italian ice shop during the summer. You need to order 6-ounce and 12-ounce cups. The storage room can only hold 10 boxes of cups. A box of 6-ounce cups costs $7.00 and a box of 12-ounce cups costs $4.00 (There are more cups in the 6-ounce box). A maximum of $56.00 is budgeted for cups. Let I stand for the number of 6-ounce cups and y for the number of 12-ounce cups. I+ y