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I am lost...Help anyone please.

Hello everyone. Hope everyone is doing well. Anyway this is my last resort. I am alright with math but I'm no Einstein. :) I have a total of ten questions here that I just cannot answer and am honestly tired of trying. :eek: I will post the first five because that is all this site will allow me to post due to the size limitation of the file. I will post the second five on another thread. If anyone can help me out please let me know.

Thanks in advance,

Luis

Sorry about that attached wrong file.