Atown had about 2120 acres of pine tress 40 years ago. only about 13% of the pine tress remain. how many acres of pine tress remain?

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

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.

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