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28 August, 14:06

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.

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  1. 28 August, 14:26
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    If Jessie earns the same commission on every car, the 400x part of the equation suggests she earns $400 on each car. If that is the case, in the first week she must have sold 2 cars because 800 / 400 = 2. So Jessie sold 2 cars in the first week and x number of cars in the second week, earning $400 per car.
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