16.22 because two twenty dollar Bill's equals 40 then subtract 23.78 which equals 16.22
Answer:
Step-by-step explanation:
Take short showers. Turn water off when brushing teeth. Clean dishes quicker. Fix leaks. Use less water when doing laundry.
X is equal to 18 and y is 27.
An hour is 60 minutes so 80-60 = 20 so 1 hour and 20 minutes.