Not too easy. Not too difficult.
I would not recommend this professor if you have the option to take another one. She seems like a fairly nice person but her teaching style was very hard to follow and she frequently messed up homework examples. If you absolutely have to take her, study for the tests from the study guides. The questions are set up the same way (my friend got 100% on the first two tests by studying the study guides).
The concepts aren't too difficult if you are decent at math.
Hours per week:
Advice for students:
Use the study guides. Do the homework.