Question #N968

The expression $\frac{x^{10}y^6}{x^2y^2}$ is equivalent to $x^ay^b$, where a and b are constants. What is the value of $a+b$?
A. 6
B. 8
C. 10
D. 12

Correct Answer is: B

Using the properties of exponents, we can simplify the expression as follows: $\frac{x^{10}y^6}{x^2y^2} = x^{10-2}y^{6-2} = x^8y^4$. Therefore, $a+b = 8+4 = 12$.