A football team has three 15-yard penalties. What real number describes the change in yardage from these penalties?

EXPLANATION PLEASE!

3 * -15 = -45

http://www.jiskha.com/display.cgi?id=1315444731

To find the total change in yardage from the three 15-yard penalties, you can multiply the number of penalties by the yardage of each penalty. In this case, there are three penalties, each carrying a yardage of 15.

To calculate the change in yardage, you can multiply the number of penalties (3) by the yardage per penalty (15):

3 penalties * 15 yards/penalty = 45 yards

Therefore, the real number that describes the change in yardage from these penalties is 45 yards.