A standard coffee mug has a capacity of 16 fluid ounces. If Annie needs to fill 26 mugs with how many total quarts does she need?

1. Convert ounces to quarts:

* There are 32 fluid ounces in 1 quart.

2. Calculate the total ounces needed:

* Annie needs 26 mugs * 16 ounces/mug = 416 ounces

3. Convert ounces to quarts:

* 416 ounces / 32 ounces/quart = 13 quarts

Answer: Annie needs 13 quarts of coffee.