I used this textbook for all my math classes so far, and I'm hoping to keep using it by getting the same professor until I'm no longer in 101 math classes. I also have been using this to practice my math skillz, since I'm not taking another math course until the spring semester. It was pretty expensive (to me!). Each course I had to get a new mathlab code (which was $100+), but the prof was thinking of next semester not using the mathlab, because it can get pricy. I'm hoping to get her for the third class in a row, and we don't need a new mathlab code.