ANSWER
40 Books
EXPLANATION
Given:
1. The total amount spent at the bookstore = $18
2. The cost of each book = $0.45
Desired Result:
Total number of books bought at the bookstore.
Declaration of variable
Let n represent number of books bought
[tex]\begin{gathered} n\text{ }\times0.45\text{ = 18} \\ n\text{ = }\frac{18}{0.45} \\ n\text{ = 40} \end{gathered}[/tex]Hence, the total number of books Jordan bought at the bookstore = 40.