Carlos drove 276 miles from his house to los angeles at an average speed of 62 miles per hour. his trip back home took 6.5 hours. how did his speed on the way home compare his speed on the way to los angeles?

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