You divide the 15x by the 124. I know it sounds weird because you'll get a decimal, but that is what you are supposed to do because 124 is not a factor of 5.
You can use the distance formula.
The distance formula says the distance between two given points (x1, y1) and (x2, y2)
=

Your given points are (8, -1) and (-2, -1).
The distance will be

.
But you could have recognized that both points have the same y-coordinate of -1, which means change in distance is determined by change in x-coordinates only.
Change in x-coordinates is |-8 - 2| = 10. There is absolute value because distance cannot be negative.
I believe the answer is A) 3
My answer was $3.50. Can I have Brainliest for helping you when no one else wanted to?
Your answer is 7,921.
Calculations:
89x89 = 7,921