Determine the measure of
will give brainliest

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 ratio of the length of an object in yards to the length of the same object in miles?

Math i have no idea how to do a and b