Running the water while you brush your teeth can consume another liter. How much water can you save in a week by turning it off

21 liters of water

Step-by-step explanation:

Let's say if you consume 2 liters of water when you run the tap and brush at the same time.

Also when you don't run the tap while you brush, you only use 0.5ilters

Now assuming you brush at least twice a day, this alone shows that you will use 0.5x2= 1L

Instead of 2x2= 4l.

Hence, in one day you will save 4-1= 3L

Therefore for a week you will save

3x7= 21 liters of water

answer: 12,000

step-by-step explanation: first you ar e supposed to add. then multiply then subtract