Y = 8x + 12
Now, plug in the 60.
60 = 8x + 12
Subtract 12 from both sides.
48 = 8x
Divide both sides by 8.
6 = x
Swap sides.
x = 6
It would take 6 hours for the pool to have 60 inches of water inside it.
Answer:
The decimal is not a rational number.
REASON:
A decimal can be a rational number if it fulfills any of the two conditions.
It must be Terminating. This means that the decimal should have finite number of digits.
If it is non-terminating decimal it should be Recurring. This means the decimal should repeat itself after some specific digits.