The Unit Sales of a Company's Product a in June $\vec { a } = ( 100,220,100,85 )$

The unit sales of a company's product A in June, July, August, and September are given by $\vec { a } = ( 100,220,100,85 )$ , and the sales of product B in the same four months are given by $\vec { b } = ( 130,200,320,200 )$ .Suppose the company makes a profit of $200 for each unit of product A and $85 for each unit of product B.Compute $200 \vec { a } + 85 \vec { b }$ and interpret its meaning.