Answer:
c
Step-by-step explanation:
You take what Mark ran, 46 miles, and you see that Mark ran 31 more miles than Jack, so the equation would be 46-31, which would be 15 miles. So, Jack ran 15 miles.
Answer:
The slope is
.
Step-by-step explanation:
The equation is conveniently in slope-intercept form.

m - slope
b - y-intercept
-2/3 is in m's spot, so it is the slope of the equation.

Hope this helps.
Answer:
I believe it would be "505 times n"
Step-by-step explanation:
If tis is not what you are looking for I am sorry, but the question was vague.
I don’t get your question but I think it’s B