<h2>Hello!</h2>
The answer is:
The function that can be used to determine the total number of pages that she will read after "x" days is:
From the statement, we know that Lisa's already read 15 plus 12 additional pages, that it's a fact that will not change over time. Also, we know that she is reading 5 plus 6 additional pages per day, so, the number of pages that she will read after "x" days.
So, determining the number of pages that she will read after "x" days, we have:
We are given that:
Then, writing the equation, we have:
Where,
Hence, the function that can be used to determine the total number of pages that she will read after "x" days is:
Have a nice day!