Question

select the correct answer from each drop - down menu. let b(t) be the number of unread books remaining on alexs bookshelf after reading consistently for t months. b(t)=75 - 5t. so, b(9)=30. this means that after 9 months, the number of unread books remaining is 30. reset

Explanation:

Step1: Identify the function

We are given the function $b(t)=75 - 5t$, where $b(t)$ is the number of un - read books and $t$ is the number of months.

Step2: Substitute $t = 9$

Substitute $t = 9$ into the function $b(t)$. So $b(9)=75-5\times9$.

Step3: Calculate the result

First, calculate $5\times9 = 45$. Then $b(9)=75 - 45=30$.

Answer:

30 means that after 9 months the number of unread books remaining is 30.