Answer:
If he purchases 13 books in a year, his total cost is $45.75
Step-by-step explanation:
1. $10.00 + (2.75 x 13)
2. $10.00 + (35.75)
3. $45.75
Answer:
The total cost of purchasing 13 books in a year is $45.75.
Step-by-step explanation:
Grant's total annual cost is a function of the number of books, b, that he purchases in a year.
The function is given by : [tex]C(b)=2.75b+10[/tex]
What is the total cost if he purchases 13 books in a year?
We will substitute b = 13 as b represents the number of books purchased.
[tex]C(13)=2.75(13)+10[/tex]
= [tex]35.75+10[/tex]
= $45.75
Therefore, the total cost of purchasing 13 books in a year is $45.75.
