Here is a video of me explaining the solutions and showing all of my work (the video might not play on your phone, you'll need to use a computer!). I apologize for a blurry video when you view it in full screen, but that shouldn't keep you from following along with the solutions. I'll work on trying to make higher quality videos in the future. As a study tip, it's a great idea to try to solve these problems yourself before looking at my answers. You can use the video to check your work and to give you hints if you get stuck along the way. Problems just like these could very well be on the test, so make sure you understand them!
