Kerry and three friends went out for dinner. They split a large pizza and each person had a salad and a soda. They want to leave a 15% tip on the cost of the food, and the sales tax is 8 1/4%. How much will each person pay if they split the bill evenly? Pizza $18.60

Salad $2.50

Soda $2.25

What strategies can you use?

How much does each person will pay?

Write an argument that can be used to defend your solution?

Each person will pay $ 7.20

Step-by-step explanation:

First we find the total bill

Pizza $18.60

Salad $2.50

Soda $2.25

Total  $ 23.35

Sales Tax would be=  8 1/4% of $ 23.35 =$ 1.926= $ 1.93

Tip = 15% of $ 23.35= $ 3.5025

Total Bill paid= $ 23.35 + $ 1.93+ $3.50= $ 28.7825 or $ 28.78

Now dividing the bill among 4 persons = $ 28.78/4= $ 7.196 or $ 7.20

Paying the bill equally is better  and convenient than paying alone as each person gets an equal share of pizza, salad and the soda.

answer: the common difference is -0.10