Problem:
A company produces to types of products, A and B which have profits of $9 and $7 respectively. Each unit of product must be processed on two assembly lines, where the required production times are as follows.
Product A, Assembly line #1= 12 units
Product A, Assembly line #2= 4 units
Product B, Assembly line #1= 4 units
Product B, Assembly line #2= 8 units
Total hours: Line #1=60 Line #2= 40
Profits per unit: Product A=$9 Product B=$7
Develop a linear programming model in standard form