Any help would be good! The answers are on the bottom, but I would like to know how to get those answers. Thank you!

.2-2. Power for Agitation and Scale-Up. A turbine agitator having six flat blades and a disk has a diameter of 0.203m and is used in a tank having a diameter of 0.61 m and height of 0.61m. The width W=0.0405m. Four baffles are used having a width of 0.051m. The turbine operates at 275rpm in a liquid having a density of 909kg/m3 and viscosity of 0.020Pas. a. Calculate the kW power of the turbine and kW/m3 of volume. b. Scale up this system to a vessel having a volume of 100 times the original for the case of equal mass-transfer rates. Ans. (a) P=0.1508kW,P/V=0.845kW/m3; (b) P2=15.06kW,P2/V2=0.845kW/m3