B.0 because integers cannot be decimals.
I believe for this question you would subtract how much he spent from how much he sold it for.
This would be 155.00 - (35.00+39.17+36.43).
155.00 - 110.60 = $44.40
Hope this helps!
Where because I do not see it
What you need to find is 80% of 750
There are many ways to figure that out but the way that I did it is to divide 750 by 100. The answer (7.5). Is 1% of 750
In all I had to do was multiply 7.5 x 80. Giving us the answer which is 600