Answer:
Each cheeseburger cost $5.25
Explanation:
First, we must subtract the price of the taco, $2.75, from the total amount spent at dinner. This leaves us with 21 dollars.
Now, we must divide 21 by 4, this will show us the price of each cheese burger.
21 ÷ 4 = 5.25
So, each cheeseburger cost $5.25.