Jane has 16 cars available to rent. Let C be the number of cars she would have left after renting R of them.
Write an equation relating C to R. Then use this equation to find the number of cars she would have left after renting 12 of them.

What's for breakfast? all people who ate at a certain restaurant were surveyed as to what they ordered on a particular sunday morning. 40 ate eggs 42 ate sausage 32 ate pancakes 13 ate sausage and eggs 15 ate pancakes and sausage 11 ate eggs and pancakes 6 ate all three items 3 people didn't eat any of the items how many people ate only pancakes? how many people ate at the resturant that morning? how many people didn't eat eggs?