Answer:
D:78+5+7
Explanation:
We are given that in a football game , a running back ran for -7 and -5 yards on his two runs.
His total yardage for the whole game=78 yards
We have to find that which expression shows how many yards the running back had before those two runs.
Total yardage=78 yards
Sum of two runs=-7-5
Now, number of yards had before two runs is given by

Hence, the expression which shows number of yards the running back had before two given runs
D:

Answer:D:78+5+7