I need help on number 1

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.

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

Acircle has a circumference of 28.36 units what is the diameter of the circle