There are 4 times as many used cars in the car dealership lot as there as new cars. there are 120 cars total in the dealership lot. how many new cars are in the car dealership lot?

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

How to do this , and can some one explain

Me. i can't figure out this question. give an explanation too. .