A he can buy five candy bars and will have 88 cents left over.
Simple,
writing out the problem...

Simplify it...
-4x(6+5-1)
-4x(11-1)
-4x(10)
-40x
Making it look like...

Cancel out the common factors...
Thus making the answer:

.
The answer is 6.601, and therefore, the second option.
The answer would be 7.225.