Final answer:
If Kaitlin sells 38 books in a week, she would earn $84.
Step-by-step explanation:
The question about how much Kaitlin earns in a week can be approached as a linear function problem in mathematics, where A(b)=46+b represents the amount of money Kaitlin earns. In the given scenario, Kaitlin's earnings in a week are represented by the function
A(b)=46+b, where b stands for the number of books sold.
If Kaitlin sells 38 books in a week, we can find her earnings by substituting
b=38 into the function:
A(38)=46+38
When we add 46 to 38, the result is 84. Therefore, if Kaitlin sells 38 books in a week, she would earn $84.