What is the average of xx,2x2x,and 66?  Choose the correct choice from the following options.
A) x+2  B) x+2x  C) x+2x+2  D) 2x+2  E) x+2x-2
By the definition of an average, we get:   x+2x+63=3x+63x+2x+63=3x+63   =3(x+2)3=x+2.=3(x+2)3=x+2.   Hence, the answer is x+2x+2 or Option x+2x+2
<result>C</result>
What is the average of xx,2x2x,and 66?