They sold 350 bars at $1 dollar each to collect $350.
[tex]350 \times 1 = 350[/tex]
Since you make 50 cents per every dollar.
Therefore you make half of the money collected.
[tex]1 - .50 = .50[/tex]
So, you take 350 and divide it by 2.
[tex]350 \div 2 = 175[/tex]
You would make $175 profit.
