Mathematica won't plot my functions, not sure why?

Questions
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1

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.

Imgur

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

2

Replace ln() with Log[] and e with E.
Mathematica is fanatic about correct capitalization and () versus [] versus {}.

3

Thank you so much Bill! Just one other question, how would I change the range of the vertical axis?

Edit: Nevermind, googled it and got it, thanks again for the help!