"A bike manufacturer makes two kinds of bikes: a starter
model and a professional model. The starter model requires
4 hours in the assembly room and 1 hour In the finishing
room. The professional model requires 6 hours in the
assembly room and 1 hour in the finishing room. The total
number of hours avallable in the assembly room is 108.
There are 24 hours available in the finishing room. The
profit for each starter model is $35 and the profit for each
professional model is $55. Assuming all the bikes sell, how
many of each kind of bike should be manufactured to?
maximize profit?