Turning off the water while brushing your teeth saves 350 centiliters of water. How many liters of water can you save if you turn off the water the next 2 times you brush your teeth?
(Round your answer to the nearest hundredth.)
I DON’T GET IT PLEASE HELP

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

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same question do you know the answer