How to solve this problem 14-6= 10-6=?

You are looking at two area rugs for your bedroom. one is a square with side lengths of 6.3 feet. the other is a rectangle that is 4.8 feet by 8.2 feet. which rug will cover the greatest area? how much more area will it cover? with work plzz and u so much

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

How do you use the elimination method for this question? explain, because i really want to understand!