I'm new and trying to maximize a shipment with certain parameters. I have 6
products differing in weights (5,4,3.5,3,2,1) each with different costs
(9,8,7,6,5,4) and sale price(17,13,11,9,7,5). I can only send a combination
of 3 products lines with 4-8 pieces of product and cannot weigh more than 50
pounds. I am trying to maximize profit.

I reviewed solver but am lost, can anyone forward me to some help?

Thanks in advance!