To determine how many more bags of popcorn Kendall needs to sell to raise at least $400, we first need to calculate how much more money she needs.
- Total money needed: $400
- Money raised so far: $104
- Money still needed: \[ 400 - 104 = 296 \]
Next, we find out how many bags of popcorn she needs to sell to raise those $296. Since each bag costs $8, we can calculate the number of bags required by dividing the remaining money by the price per bag:
\[ \text{Bags needed} = \frac{296}{8} = 37 \]
Since she needs to raise at least $296, and 37 bags will exactly raise that amount, she will need to sell at least 37 more bags to achieve her goal of $400.
Based on the options provided, the correct answer is:
37 or more.