60 - 45 = 15
so 15/45 = p/100
answer is A.
200, because the more samples you have the more correct you will be.
The negative exponents that are in the numerator pass to positive if the base is moved to the denominator, and the negative exponents that are in the denominator pass to positive if the base is moved to the numerator.
The the answer is the option B: xx^4 / y^2 y^6
