What is the missing number in the factor tree?

A. 9
B. 8
C. 5
D. 2

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Simplify the expression 10/11(22z) + (a+5) -1

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3