In an experiment, the control variable is a and the response variable is b. which variable is manipulated, or changed

Line gh passes through points (2, 5) and (6, 9). which equation represents line gh? y = x + 3 y = x – 3 y = 3x + 3 y = 3x – 3

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.