Help...

Okay, so I'm writing a story called Ever wish you had wings and I'm stuck...I need weapon ideas, anything that can take down tons of zombies....

And I need advice with school....I'm taking algebra and I don't know how to ask the teacher for help since he's teaching three (now four) different algebra classes at once...He's always busy...And I can't afford to fail this class again...I need to move on so I can graduate...But as you can tell he's always busy with other students and the only other person on my math level is a druggie that doesn't know anything about the class and gets kicked out a lot..So no help there....And it's not like is there anything online that could help? But I don't really want to teach myself...I'm ready taking two online classes and I'm HORRID at maths...So I don't really think that would help....I'd really appreciate advice...Thanks :)