Go the Piaza page for questions and discussion. Homeworks can be found on Webwork. Since the last few quizzes have been pretty hard, I've posted their solutions below.
Quiz 9 Solutions here
Quiz 10 Solutions here
Quiz 11 Solutions here
Quiz 12 Solutions here
Fall 2016: Math 16A with Emiliano Gómez
Spring 2017: Math 1B with Zvezdelina Stankova