Deandre is using the expression 3b + 4 to represent the number of cars in the mall parking lot. There are three times as many cars as parking spots, and there are four cars parked illegally. What does b represent?
3b + 4 is the same as (3 x b) + 4 so 4 is the illegal cars, b is the parking spots and 3 is the the cars in parking spots, so the only logical answer is the number of parking spots.