Let x = number of medium Meat Lovers pizza sold
Let y = number of large Meat Lovers pizza sold
The cost of a medium Meat Lovers pizza is $10.95
Hence, the cost of x medium Meat Lovers pizza is $10.95x
The cost of a large Meat Lovers pizza is $14.95
Hence, the cost of y large Meat Lovers pizza is $14.95y
Since the total cost of Meat Lovers pizza sold is $663.50
This