Final answer:
You can fill 6 cups from a 2.1L bottle.
Step-by-step explanation:
To determine how many cups can be filled from a 2.1L bottle, first convert the volume of the bottle to milliliters. 2.1L is equal to 2100mL. Then, divide the volume of the bottle by the capacity of a cup. 2100mL รท 350mL = 6 cups
Learn more about Capacity of a bottle