PLEASE HELP ASAP COMBIINE 12x + 9 -3x -4

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

The domain of a function can be represented by which one of the following options? o a. a set of output values o b. a set of f(x) values o c. a set of input values o d. a set of both input and output values

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?