Final answer:
The school band will still need to collect $321.49 after the fundraiser ends.
Step-by-step explanation:
To calculate the total amount of money the school band will need to collect after the fundraiser ends, we need to determine the total sales from selling tubs of cookie dough and packs of dry cookie mix.
For tubs of cookie dough: 24 x $12.49 = $299.76
For packs of dry cookie mix: 15 x $5.25 = $78.75
Therefore, the total sales from the fundraiser is $299.76 + $78.75 = $378.51.
To find out how much money the school band will still need to collect, we subtract the total sales from the target amount:
$700.00 - $378.51 = $321.49
So, the school band will still need to collect $321.49 after the fundraiser ends.