The store manger paid [tex]\bold{\$ 5125}[/tex] in all.
SOLUTION:
Given, a store manger bought 7 boxes of books. Each box held 25 books. He then bought 9 boxes of pencils. There were 100 pencils in each box. The manger paid $19 for each book and $2 for each pencil.
We have to find the amount paid
Now, [tex]\text{total payment = payment for books + payment for pencils}[/tex]
[tex]\text { Total payment }=\text { number of books }\times \text { cost of each book }+\text { number of pencils }\times \text { cost of each pencil }[/tex]
[tex]\text { Total payment }=7 \text { boxes } \times 25 \text { books per box }\times \$ 19 \text { per book }+9 \text { boxes }\times \text { 100 pencils per box }\times \$ 2 \text { per pencil }[/tex]
[tex]\text { Total payment }=7 \times 25 \times 19+9 \times 100 \times 2[/tex]
[tex]\begin{array}{l}{\text { Total payment }=3325+1800} \\\\ {\text { Total payment }=5125 .}\end{array}[/tex]
