In the locker room, there are 8 rows of 9 lockers. All lockers were full in the morning, but in the afternoon 6 were empty. How many lockers were full in the afternoon?

66

Step-by-step explanation:

The total number of lockers that were full in the morning was 72. Since 6 were empty in the afternoon, 72-6 = 66 full lockers

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

answer: 819.89 miles across america

step-by-step explanation: