I'm working on a project for my financial mathematics class. I have to graph 5 functions all together in one graph. Below I have a link to a screenshot as to what happens. Only one of the functions graph and another one seems to be giving an error. The rest are just blank. Please let me know what I can do to fix this.

http://imgur.com/jSXXBIA

Edit: I just noticed on the screen cap that I accidently copied the graph for output 23 twice and left output 25 out. But output 25 is also blank. I screenshotted this way just so the picture wouldn't be as long