Ben was in charge of ordering 16

16 pizzas for the office party. He ordered three types ofpizza: Cheese,Pepperoni, and Supreme. The cheese pizzas cost $ 8

$8 each, the pepperoni pizzas cost $ 10

$10 each, and the supreme pizzas cost $ 12

$12 each. He spent exactly twice as much on the pepperoni pizzas as he did on the cheese pizzas. If Ben spent a total of $ 156

$156 onpizza, how many pizzas of each type did hebuy?