on three consecutive passes a football team gains 8 yards loses 39 yards and gaons 13 yards what number represents the total net yardage?

if i did it right is it -18?

yes, you are correct.

21

To calculate the total net yardage, we need to add all the yardage gained and subtract all the yardage lost. In this case, the football team gained 8 yards, lost 39 yards, and gained 13 yards.

To find the total net yardage, we add the yardage gained and subtract the yardage lost:
Total net yardage = Yardage gained - Yardage lost

Total net yardage = (8 yards + 13 yards) - 39 yards

Total net yardage = 21 yards - 39 yards

To subtract 39 from 21, we get a negative number (-18 yards).

Therefore, the number representing the total net yardage is -18 yards.