To find out how many bags of chips the school soccer team would need to sell to raise $1,000.00 at $2.50 per bag, you can use the following equation:
\[ \text{Number of bags} = \frac{\text{Total amount needed}}{\text{Price per bag}} = \frac{1000}{2.50} \]
Calculating that:
\[ \frac{1000}{2.50} = 400 \]
Therefore, the team would need to sell 400 bags of chips to raise $1,000.00.
So the correct response is:
400 bags.