Is (-2,-4) a solution of the system y=2x and 3x+2y=1 ?

Julian wrote the following numeric pattern on the board3,10,17,24,31,38.what numbers of julian's pattern are compound numbers.

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?

The graph of f(x) is obtained by reflecting the graph of f(x)=-3|x| over the x-axis. which equation describes f(x)? a) f(x)=3|x| b) f(x)=|x+3| c) f(x)=-3|x| d) f(x) = - |x+3|