Answer:
$ 15680
Explanation:
From the question given above, we were told that Karen earn a commission of $ 140 per course.
To know her commission for selling 112 courses, we simply do the following:
Karen earn a commission of $ 140 for 1 course.
Therefore, she will ear $ X for 112 courses i.e
$ X = $ 140 × 112 course/ 1 course
$ X = $ 15680
Therefore, Karen commission for selling 112 courses is $ 15680