If i remember correctly the first space after the period is the tenths place, it is B, i think
If you are looking for how many cans you would have left:
The sum would be 250 - 40 - 80 - 60 = 70 cans left
<em>
Not entirely sure this is what you're asking for</em>
-x ( 13 + x ) = 0
Factor out x from the expression