SL Organizational Behavior Q's

[sprks79]

Hello all, 

I have finally decided to return for my degree. I am currently anticipated to start WGU Dec. 1st and have a few questions.

1. I am taking the Straighterline- Organizational Behavior course. I see in the syllabus that the tests are as follows 
Graded Exam 1 125 
Graded Exam 2 125 
Midterm Exam 250 
Graded Exam 3 125 
Graded Exam 4 125 
Final Exam 250 
Total 1000 

My question. It takes passing the course with a 70% to receive the credit for the class. The way I did my math, if I got all the points from the four exams and midterm, and I completely hack the final, I should still get a 75% correct?

2. Have any of you used the quizlet sets for this course? Did it help on the final?

3.  If it is that easy to get the needed 70%+ what incentive is there to completing the final?

Thanks in advance

Scott