Final answer:
The cost of a pizza can be represented by the expression: Cost = 8 + (1.50 * meat toppings) + (0.75 * non-meat toppings), where meat toppings and non-meat toppings are variables representing the number of toppings on the pizza.
Step-by-step explanation:
The expression that represents the cost of a pizza is:
Cost = 8 + (1.50 * meat toppings) + (0.75 * non-meat toppings)
In this expression, the variable meat toppings represents the number of meat toppings on the pizza, and the variable non-meat toppings represents the number of non-meat toppings on the pizza.