Answer: The answer is nine, because

To get the 0.12 to repeat, the trick is to subtract 1 from the denominator

Then reduce the fraction.

now add the 3 to get
Answer: There are no fractions listed, so I can't help you. 1/3 is a repeating though, if that helps anything. Otherwise, you could use a calculator and just find the decimal of the fraction.
24/26 or opposite over adjacent. The answer is C