Final answer:
To find the combined annual savings from repairing the 12 leaky faucets, calculate the total amount of water wasted in a year and multiply it by the cost of water per gallon.
Step-by-step explanation:
To find the combined annual savings from repairing the 12 leaky faucets, we need to calculate the total amount of water wasted by the faucets in a year and then multiply it by the cost of water per gallon.
The amount of water wasted per day by one faucet is 5.7 gallons. So, in a year, each faucet would waste 5.7 x 365 = 2080.5 gallons.
The total amount of water wasted by the 12 faucets in a year would be 2080.5 x 12 = 24966 gallons.
The town charges $2.06 for every 1000 gallons of water used, so the cost of 24966 gallons of water would be 24966 / 1000 x $2.06 = $51.39.
Therefore, the closest estimate of the combined annual savings from repairing the 12 leaky faucets would be $51.39.