The area of a sheet of paper could have which of the following answers with the correct units?

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

Someone me i need with this stuff

Four equations are shown below.equation 1: y=2*equation 2: y=2x-5equation 3: y=x2 + 6equation 4: tdentify one linear equation and one nonlinear equation from the list.why each equation you identified is linear or nonlinear.nd one nonlinear equation from the list. state a reasonlinear equation