The total commission, in dollars, jessie earned on selling cars at a dealership in two weeks is given by the expression 800+400x. she earns the same amount of commission per car each week. which situation could be described by this expression?

jessie earned a total commission of $800 in the first week and x dollars in the second week.

jessie sold 2 cars in the first week and x number of cars in the second week, earning a commission of $400 on each car.

jessie sold 1 car in the first week, earning $800, and x number of cars in the second week, earning a total commission of $1,200.

jessie earned a commission of $800 on each car in the first week and $400 on each car in the second week, selling x number of cars each week.