Plz help ASAP with real answers

What is the measure of ac? 5 units 13 units 26 units 39 units

The vertices of a rectangle are given in the columns of the matrix . if is found to perform a transformation, what are the coordinates of the transformed rectangle? (0, 0), (0, –3), (–3, –3), (–3, 0) (0, 0), (0, 3), (3, 3), (3, 0) (0, 0), (0, 3), (–3, –3), (–3, 0) (0, 0), (0, 3), (–3, 3), (–3, 0)

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?