It would be mark N? I think
Ron would need to run 3 miles
Sum up the total number of votes.
So, 5+7+8=20 students
If you would like to solve p = r - c for c, you can do this using the following steps:
p = r - c /+c
p + c = r - c + c
p + c = r /-p
p + c - p = r - p
c = r - p
The correct result would be c = r - p.
