Please help me ☹️☹️‍♀️
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Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g