Two apartment roommates split the rent, utilities, and grocery payments equally each month. The rent for the whole apartment is $1100 and utilities are $114. If one roommate pays $757 in all, how many dollars are groceries for the whole apartment?
Rent plus utilities for the whole apartment is 1100+114 = $
<gadget id="calculator">1100+114</gadget>
<output>1_214</output>
1214.
If one roommate pays $757 in all, the total cost of everything is 757*2 = 
<gadget id="calculator">757*2</gadget>
<output>1_514</output>
1514.
The groceries cost 1514-1214 = 
<gadget id="calculator">1514-1214</gadget>
<output>300</output>
300.

<result>300</result>