Final answer:
The total cost of Troy's personal pizza with 2 toppings at Pepe's Pizzas is $11.50, which is the base price of $7.50 plus $4 for the two toppings.
Step-by-step explanation:
Troy would like to know how much his personal pizza with 2 toppings will cost at Pepe's Pizzas. The base price of a personal pizza at Pepe's Pizzas is $7.50, and each additional topping costs $2. Since Troy chose 2 toppings, we multiply 2 toppings by the price per topping, which is $2 per topping, giving us $4. Next, we add the cost of toppings to the base price of the pizza: $7.50 (base price) + $4 (toppings) = $11.50. Therefore, the total cost of Troy's pizza is $11.50, making option (b) $11.50 the correct answer.