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and what do you have to work with?

What do you mean by that? I believe that is all that is provided in the problem

ti83, or tables, or what?

do you have a stats calculator?

Yea a ti-84

How would I show my work though?

can you find the distribution menu?

Yea I think so

you want what is called: INVNORM

ok i see invnorm

a. P(x>=x(0)) = .5
invnorm(.5), hit enter
b. P(x < x(0) = .025
invnorm(.025), hit enter

Ok I see, thank you

seeing that they give you the mean and sd
x = 30 + 8z