ANSWER:
$22.07
Explanation:
To know the money to spend in total, we must know the amount of ream to buy.
To determine how many reams to buy, we need to calculate the total number of pages.
Given:
Number of pages per report = 158 copies
Number of copies of reports needed = 18
Cost per ream = $3.88
We can calculate the total number of pages, multiplying the number of pages per report by the number of copies of the report, just like this:
![158\cdot18=2844\text{ pages}](https://img.qammunity.org/2023/formulas/mathematics/college/la9awp2zzdtbxldn22lhyc59a9wpg6rpzx.png)
Now, we calculate the number of reams:
![2844\text{ pages}\cdot\frac{1\text{ ream}}{500\text{ pages}}=5.688\text{ reams }](https://img.qammunity.org/2023/formulas/mathematics/college/1oikpgs6uqwp26if92aj6igsanu427udcn.png)
A total of 5.688 reams must be purchased, which in money would be:
![5.688\text{ reams}\cdot\frac{\text{ \$3.88}}{1\text{ ream}}=\text{ \$}22.07](https://img.qammunity.org/2023/formulas/mathematics/college/91gvspvixt45901cgn9pmya9mkhgjsnpig.png)
The cost for these reports would be $22.07