You plan to be at least 5 miles (straight line distance) from your competitor. Your drive there via a route that forms two legs of a right triangle. The legs are 4 miles and 3.5 miles. Are you fat enough away?

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?