Damari is selling popcorn for $3 a bag. He already has $40, and his goal is to earn $85 total. Use arithmetic to determine how many bags he needs to sell to make his goal.

Let's start by finding out how much more Damari needs to earn to reach his goal of $85. We can do this by subtracting the amount of money he already has from his goal:

$85 - $40 = $45

So Damari needs to earn $45 more.

Since each bag of popcorn sells for $3, we can find out how many bags he needs to sell by dividing the amount of money he needs to earn by the price per bag:

$45 ÷ $3 = <<45/3=15>>15

Therefore, Damari needs to sell 15 bags of popcorn to reach his goal of earning $85.

To determine the number of bags Damari needs to sell to reach his goal of earning $85, we can use the following arithmetic steps:

1. Calculate the amount of money Damari needs to earn by subtracting his current savings from his goal amount:
$85 - $40 = $45

2. Determine the number of bags Damari needs to sell by dividing the money he needs to earn by the price of each bag:
$45 ÷ $3 = 15

Therefore, Damari needs to sell 15 bags of popcorn to make his goal of earning $85.

To find out how many bags Damari needs to sell, we can subtract the amount of money he already has from his goal amount.

The amount of money Damari needs to earn is given as $85, and the amount of money he already has is $40. Thus, we need to calculate:

$85 (goal amount) - $40 (already earned) = $45.

Since each bag of popcorn is sold for $3, we can find out how many bags Damari needs to sell by dividing the remaining amount needed by the price of each bag:

$45 (remaining amount needed) ÷ $3 (price per bag) = 15 bags.

Therefore, Damari needs to sell 15 bags of popcorn in order to reach his goal of earning $85.