They plan to order 2 cheese pizzas for every 3 pepperoni pizzas they order how many cheese pizzas will they order if they order 15 pepperoni pizzas

The answer is 10 cheese pizzas.
For every three pepperoni pizzas, you have two cheese pizzas.
You have 15 pepperoni pizzas, you divide it by three. You have five sets of three pizzas. Multiply each set by two, you have 10 cheese pizzas.
15 ÷ 3 = 5
5 · 2 =10

15/8   15 is for the pepperoni and 8 is for the cheese

The total bill before the tip would be $ 25

Step-by-step explanation:

Let x be the amount of total bill,

∵ tip is 18% of the bill,

So, the amount of bill = 18% of x = 0.18x,

According to the question,

0.18x = 4.50

Hence, the total bill before the tip would be $ 25.