Question

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Answer 1

8320

Explanation:

So first you multiply 8 by 10 because that's how much quarts you use when you saved so you get 80 quarts you multiply by 4 because that is how much you use in a week so 320 in a week there is approximately 52 weeks in a year. So 320 by 52 which is 16640 quarts in a year. Then you do the same thing but with 15 because its before you save so in total 15 minutes a shower for a year is 24960. So you get 24960 then subtract 16640 which is 8320.