Answer:
The answer is
D) Method 1 can save $288 more than Method 2.
Step-by-step explanation:
Considering that the cost per gallon of water is $0.04, we have to determine how much money is saved per month using each method, so:
Method 1 saves 1200 gallons of water per month.
1200 * $0.04= $48
Method 1 saves $48 per month
$48 * 12= $576
Method 1 saves $576 per year
Method 2 saves 600 gallons of water per month
600 * $0.04= $24
Method 2 saves $24 per month
$24 * 12= $288
Method 2 saves $288 per year
So, we can conclude that Method 1 can save $288 more than Method 2, because:
Method 1 - Method 2 = X
$576 - $288 = $288