- Fritz spent two days last week writing his report and another three days this week. In the last ten working days, what fraction of the time has he been working on his report? A. 3 B. 1 2 C. 7 9 D.​

In all honesty, there really is no “work” per say to show. mainly it’s just using the process of elimination. the question is asking which domain(s) would be the most appropriate for the function c(n). n is the number of observed vehicles so right away, 1, 2, and 3 can be eliminated.why? 1, 2 start in the negatives and therefore it is impossible to observe negative cars. so, #4 would be the best answer to the given problem.