14.  If the cylinder of largest possible volume is
inscribed in a given sphere, determine the ratio of
the   volume of the sphere to that of the
cylinder.
15.  Determine the first quadrant point on the
curve  y2x = 18 which is closest to the
point  (2, 0).     
16.  Two cars are traveling along perpendicular roads,
car A at 40 mph, car B at 60 mph.  At noon
when   car A reaches the intersection, car B is 90
miles away, and moving toward it.  At 1PM, what
is   the rate,...