I don't get how to do #1 in that we have to find it over a period of 30 days. For one day I know how to find the probability, but for 30 days do I just multiply this result by 30 or something?

EDIT: Nevermind on #1, but #2 I am completely lost. I don't even really understand the question. I have to use a normal distribution to approximate the Poisson? And use the central limit theorem? I'm sorry I don't have insight on how I should start it, I'm pretty lost on this one....