The length of a rectangular picture frame is 3 inches shorter than its width. If the perimeter of the picture frame is 38 inches, what is the length, l, and width, w, of the frame?

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.

Ithink ghe answer to this question is b just trying to others