The change is given by the difference between how much you paid and how much you actually had to pay. For example, if you pay with a $50 bill and you had to pay $13, your change will be
dollars.
In this case, we have

So, Gabriel's mistake was to leave the negative sign to the "-2" at the end of the expression, instead of flipping it to positive "+2" when subtracting it.
Answer:
it’s B
Step-by-step explanation:
just took the test
Answer:
1600
Step-by-step explanation:
You must add <u>7 scoops </u>to the truck.
<h3>
EXPLANATION</h3>
14 - 3.5 = 10.5 tons needed
10.5 ÷ 1.5 = <u>7 scoops needed</u>
Yes, you multiply by 3 each time.