If f(x) = 3x - 4, then evaluate f(a-7).

please help me.

The slope of a line is -1/2 . what is the slope of a line that is parallel to it? a. 1/2 b.2 c. -1/2 d. -2

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

An alternative to car buying is to make monthly payments for a period of time, and then return the vehicle to the dealer, or purchase it. this is called