Ihave to turn this in tomorrow, we are learning about y and x intersects

The first one one would 42x+500 for Bill. Becauseee Bill is going 50 feet per minute. And x is minute.
For Bill is would be just be 50x

50x=42x+500
-42x
8x=500
_ _
8 8

X=62.5

(Btw I am not 100 percent sure if this is how you would solve this. But this is better than nothing on your worksheet . Hope it’s right!)

The slope best fit isc. 1/6 mile per hour