How many square feet of outdoor carpet will we need for this hole

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.

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).