june went to a park that was 3 (3)/(5)of a mile away. It took her (4)/(5)of an hour to get there. What was june's speed.

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