A one compartment vertical file is to be constructed by bending the long side of an 8 in by 10 in. sheet of plastic along two lines to form a U shape. How tall should the file be to maximize the volume that it can​ hold?

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.

Ican't read this very blury