Math question! i appreciate any : )

On a piece of paper, graph y< x+1. then determine which answer matches the graph you drew.

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm

Which expression gives the exact value of x?