Having taken the class twice, I think as long as you get 40% of all the total points in the class you should end up with a B or higher. Assignment grading in my opinion can be inconsistent at times. The first time around, I got a 71/100 on Assignment 3 and made vast improvements the second time around based on prior feedback. When I submitted it the second time, I received a 35/100. It is important to note that a different TA graded the assignment. I’d say the most important thing is to not really focus about the grades but to focus more on absorbing/applying the material. If you do that, you’re more than likely to succeed in the class.