Find the slope of the line through each pair of units (6,2), (0, -4)

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.

Evaluate cos2θ for cosθ = square root of 3/2

Arational number that is equivalent to -20/4?