HURRY!!!!???? The formula for the volume of a cone with a base of radius r is . Find the radius to the nearest hundredth centimeter if the volume is 60 cm3. SHOW YOUR WORK

When building a sailboat, the maximum speed K in knots is 1.35 times the square root of the L length in feet of the boat's waterline. How long should the waterline of a sailboat be if the maximum speed of the sailboat is 6 knots? Round to the nearest whole number. SHOW YOUR WORK