Multiply 8 by 4 and that will give you 32 then add 9 and you get 41 so the answer is 41 years old
The answer is option B. 11/12 = (13 3/4) /15
it could be considered a true proportion if both are equal in values.
In order to find this, you need to cross multiply the numerator and the denominator in all of those options and find which give the exact result.
11 x 15 = 13 3/4 x 12
165 = 165