Abook fair has hardcover books for $8.75 and paperback books for $3.75. you and your friend spend the same amount, but he gets all hardcover books and you get all paperback books. you are able to get 4 more books than your friend for the same price, how many paperbacks did you get?

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.

The amount used= 13.04- 1.9 = 11.14