For f(x)=(x−4)2 , evaluate for f(3).

Suppose that prices of a gallon of milk at various stores in one town have a mean of $3.71 with a standard deviation of $0.10. using chebyshev's theorem, what is the minimum percentage of stores that sell a gallon of milk for between $3.41 and $4.01? round your answer to one decimal place.

Jack brought 12 pet monkeys. if each monkey cost $45.99, how much money did he spend in all?

Can someone tell me if these are correct?