If you use a proportion, you'll get:

Then, you use cross products:

Then, you algebraically solve x:

The answer is 5/3 inches , or 1 5/13 inches, or 1.6 repeating.
2/3 hour is 40 minutes. 1 3/4 hour is 1 hour and 45 minutes. So she spent 1 hour and 5 minutes or 1 1/12 hour longer doing homework.
Answer:
16 glasses
Step-by-step explanation:
If 1 glass = 1/4 liter of juice
then 16 glasses = 4 liters of juice
because 4 divided by 1/4 = 16