The French club is holding a car wash fundraiser. They are going to charge $10 per car, and expect between 50 and75 cars. identify the independent and dependent quantity in the situation

The independent quantity is the fact that they are going to charge $10 per car.

That is something they can control, that is known and won't change therefore it is independent.

The dependent quantity is: They don't know exactly how many cars are coming to be washed.

That is something they can't control, it's unknown, therefore it is dependent.

number of cars; money raised; 50 to 75 cars; $500 to $750

expressed by Y = 10x, 50<=x<=75

The number of cars is your dependent variable, because you can't control how many you get. Money raised is the independent variable. because it is 10 a car