Help with mic to speakers

[cowsled]

Hey guys, I work with this organization who plays music at retirement homes and they currently need a mic to speaker setup for singing. The setup also needs to be able to play music in the background (mp3s probably). Currently, I'm thinking a setup like this: mic -> laptop (plays mp3s) -> amp -> speakers. I don't know anything about this so I'm asking you guys. Could you guys recommend any mics, amps and speakers that could work? The organization's budget is about 100 dollars S). Thanks!

 

[soundguruman]

There is absolutely nothing in that price range, with any kind of quality whatsoever.
Plan on spending $500-1000 to get anything worth while, minimum.