Answer:
A. 18Ă·2/9
Step-by-step explanation:
A. 18Ă·2/9
B. 18Ă2/9
C. 2/9Ă·18
D. 9/2Ă·18
Let
Total length of box = 18 inches
Thickness of each book = 2/9 inches
Number of books that will fit into the box = x
Number of books that will fit into the box = Total length of box Ă· Thickness of each book
x = 18 Ă· 2/9
= 18 Ă 9/2
= 162/2
= 81 books
The correct answer is A. 18Ă·2/9