Acab driver drove west 2.4 miles. he then drove 6.83 miles east. how far and in which direction did he end up from his starting point? use - (negative) to indicate west and + (positive) to indicate east.

a: +4.43
b: -4.43
c: +9.23
d: -9.23

Because the cab driver drove west and then east, it must be east for the direction he ends up in. We then see that the answer is A because the west is negative so you subtract from the number of miles he drove east, instead of adding. So, once again, the answer is A:+4.43