NEED HELP ASAP PLS!! 60PTS Everyday when commuting to and from work Tasha drives her car a total of 143 miles for 2.5 hours. Her car already has 45,300 miles on it.

a. Write a function that shows the total number of miles, f(x), Tasha's car will have been driven after x more days. Explain how you know where each number goes in the equation.

b. If Tasha works 4 days a week, how many miles will her car have been driven after 3 weeks? Show and explain all your work.