You want the volume of the box to be 9 cubic inches.
find the rational solution(s) of the equation. then use polynomial long division to find the other
solution(s).
what are the possible side lengths of the box?

The answer is why would a teacher ask that

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.

Hnmmmn not sure