In March it rained 0.6 inches. It rained 0.3 inches less in April than in March. Write an equation and solve to show how much it rained in April?

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