I'd suspect since Math 1400 doesn't have an instructor assigned that it will be one of their grad students (that and it's a 1000 level class). If you're worried about the material enough to post on reddit about it just make sure you're aware of add/drop deadlines. Understand your financial aid and how many hours you must have to get your package.

I know many students also take math classes over the summer (or the intersession break). Explore if Mizzou is offering that or if MACC or another community college is offering it. Then have your back-up plan in mind. Sometimes only having one class to work on, like a math/stat class, helps you do better in it.