HELP! FINALSS!
A bookshelf at a bookstore is 3 feet 9 inches wide. There are 18 copies of the same book on the shelf, which fit the shelf exactly. What is the width of 1 of the books?

A. 3 1/6 inches
B. 2 3/4 inches
C. 2 2/3 inches
D. 2 1/2 inches

Respuesta :

Answer:3 1/2 ft = 7/2 ft

(7/2) 12/1 = 42 in.

Then:  42 / (5/8)

         42 (8/5)

         336/5

         67 1/5

you can stack 67 books

Step-by-step explanation:

The answer is D because 3ft 9 is 45 inches. 45/18 equals 2.5