The slope is 4.
To find the perpendicular slope, you use the negative reciprocal of the slope you already have. Since the original slope is -1/4, you flip -1/4 to get -4. You then find the negative of -4 to get 4
Your answer is 31.2 hope that helps
Answer:
15.6 miles needed for Sat. and Sun.
Step-by-step explanation:
100-(total of all the days)=how many miles he needs on Sat. and Sun.
100-84.4=15.6 miles needed
