How many 3 digit numbers can you make using these numbers: 4,2,9 (numbers can be reapeated)

The heaviest 16% of all men in weight weigh more than how many pounds ?

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

Which expression is not a polynomial?