What mistake was made, what can i do in the future to avoid making the mistake PLEASE HELP

MARKING BRAINLIST

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

Asystem of linear equations contains two equations with the same slope. select all of the correct statements. i a. the system may have two solutions. - b. the system may have infinitely many solutions. c. the system may have one solution. o d. the system may have no solution. submit

Corresponding angles are a. always b. sometimes c. never congruent