You would need to change the slope to -6 because perpendicular lines have opposite reciprocal slopes.
Answer:
I believe that the answer is B
With the formula: m=(y1-y2)/(x1-x2) you can sub in the values to get the slope (m).
m=(4-2)/(2-(-3))
= 2/5
Therefore the slope is 2/5.
120 because 60 times two is 120 and six times two is twelve
If he runs 6 mph for 1.5 hours, he will run a total of 9 miles