Answer:
$43.30
Explanation:
What we know,
3 hamburgers = $12.99
Coleman wants to know how much would he have to pay for 10 hamburgers,
In order to find out how much 10 hamburgers cost, you need to find out how much 1 hamburger costs,
To find how much 1 hamburger costs divide 12.99 by 3,
12.99/3
= 4.33
Now we know that 1 hamburger cost $4.33,
Now time to find out how much 10 hamburgers cost,
Multiply 4.33 by 10,
4.33 × 10
= 43.30
Therefore it cost $43.30 for 10 hamburgers.