Answer: $10
Explanation:
Let's analize the information given: We know that she had $94 to spend on 8 books and after buying these books she had $14. So, we need to calculate the amount of money she spent. Subtract $94 and $14:
![Total\ spent=\$94-\$14\\Total\ spent=\$80](https://img.qammunity.org/2020/formulas/mathematics/college/d03s4ycctyfn9mdd1xdyhguuwfg3f0fw8u.png)
Then, to calculate the cost of each book, we need to divide the "Total spent" by 8:
![cost\ of\ each\ book=(Total\ spent)/(8)\\\\cost\ of\ each\ book=(\$80)/(8)\\\\cost\ of\ each\ book=\$10](https://img.qammunity.org/2020/formulas/mathematics/college/q4c4xso4i0c1f5oe3lb1is3s6ctv36avgy.png)