Answer:
You can buy 4 Pizzas
Explanation:
if you think carefully the devilery fee is still $7
because even how many pizzas you odered,the devilery man can deliver them all together
divide the spare change with the price of each pizza.
55÷12=4 r.7
4×12= 48
$48 dollars for 4 pizzas and $7 for the delivery.
48+7=55
thus he bought 4 pizzas