To find out how many bags of popcorn Damari needs to sell to reach his goal of $85, we can set up the equation based on the information given.
- Damari already has $40.
- His goal is $85.
The amount he needs to earn beyond what he already has is:
\[ 85 - 40 = 45 \]
Now, since each bag of popcorn sells for $3, we can determine the number of bags he needs to sell by dividing the amount he needs by the price of each bag:
\[ \frac{45}{3} = 15 \]
So, Damari needs to sell 15 bags of popcorn to reach his goal of $85.
The correct response is:
15