56. Christy and Adam went to Wal-mart to buy a few items. They bought a pack of
chicken for $12.97, a gallon of milk for $4.97 , 4 bags of chips for 2 for $5.00, and
10 Sam's Choice 2 liter drinks for $.67 each. When they got to the register the clerk
told them that the chicken was on sale for 30% off the price. How much did they
spend in all?