The range of a function is the set of y-coordinates of all the points in the graph of the function.
D because it is the right value in order
2(15x + 8) I hope this helps you
15a =6a - 90
Move all the numbers with variables to one side
15a - (6a) = 6a -(6a) -90
9a = -90
9a/9 = -90/9
a = -9
Hope this helps