PLZ HELP if u know the answer for sure

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.

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

25 ! the line of best fit is h = 5a + 86. predict the height at age 16.