Mathematics, 25.08.2021 19:30 eaglesjohnson414

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The monthly water bill is a function of the number of gallons used. The cost is $19.50 for 20,000 gal or less. Over 20,000 gal, the cost is $19.50 plus $1 for each
1000 gal over 20,000 with any fraction of 1000 gal charged at a fraction of $1. On what interval is the cost constant? On what interval is the cost increasing?

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Part 1 of 2 O
The monthly water bill is a function of the number of gallons used. The cost i...