The Football Boosters bought pizza for $900 to sell at the game. They kept 10 pizzas to feed the players after the game and sold the rest for $1040. There were 8 slices in each pizza. Their profit was 50 cents a slice a) How many pizzas were in the original order? What was the original price of each pizza? b) What did they charge per slice? c) If they bought plain cheese pizza, the original price would be $10 per pizza. What would this make their profit be per slice if they sold it for the same price as before and still saved 10 pizzas for the players?