A bottle holds 48 tsp of vanilla. The amount A of vanilla remaining in the bottle decreases by 2 tsp per batch b of cookies. Write a function rule to represent this situation. How much vanilla remains after 12 batches of cookies?
The function rule to represent this situation is:
A(b) = 48 - 2b.
To find out how much vanilla remains after 12 batches of cookies, we need to substitute the value of b into the function:
A(12) = 48 - 2(12)
= 48 - 24
= 24.
Therefore, 24 tsp of vanilla remains after 12 batches of cookies.