Atimline is necessary :
a. for every goal
b. for every academic goal
c. for every life goal
d. for every high school goal

A. For every goal

Explanation:

A timeline is necessary for every goal set, be it academic, life, high school, personal, and the like. A timeline is an important part of goal setting. It helps determine what should be done by a certain time to ensure that you will reach your goal. Although some goals can take a long time to reach, a timeline will be your constant reminder of what needs to be done.

When setting a timeline, you also need to take in consideration what you want to achieve. You need to set a realistic timeline as many usually underestimate the obstacles they may face in pursuing their goals.

whichever one it is, it's definitely not one that you included on the list you provided.

total distance/total time

(85 + 82)/(5+3)

167/8

20 just over