The data in the table below gives the engin speed of a boat (in hundreds of revolutions per minute, or RPMs) for several different boat speeds (in knots). Using a cubic equation to best fit the data, determine the boat speed for an engine speed of 2500 RPMs. I Engine Boat A. 10.72 knots Speed (RPMs) Speed (Knots) B. 11.16 knots 8 5.59 C. 11.87 knots 10 6.88 D. 12.23 knots 12 7.63 14 8.04 16 8.29 21 9.4