Explain identities and no solutions

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

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

What is the equation of a line that passes through points (0, 4) and (-4,-8)?