Which of these credit card features would be best for customers who think they might need to use their credit card to borrow money? A. low fees for balance transfers
B. an annual fee that can be waived
C. a long grace period
D. no fees for cash advances

The school cafeteria can make pizza for approximately $0.30 a slice. the cost of kitchen use and cafeteria staff runs about $200 per day. the pizza den nearby will deliver whole pizzas for $9.00 each. the cafeteria staff cuts the pizza into eight slices and serves them in the usual cafeteria line. with no cooking duties, the staff can be reduced by half, for a fixed cost of $75 per day. should the school cafeteria make or buy its pizzas?