The speed of the mississippi river near new orleans is about 4.8 km/h. that is this speed in meters per minute? a. 288,000 m/min b. 800 m/min c. 80 m/min d. 12,800 m/min

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