VERY EASY ONE QUESTION
Rephrase the following question to remove bias.

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

The number of nails of a given length is normally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 in. find the number of nails in a bag of 120 that are less than 4.94 in. long.

List x1, x2, x3, x4 where xi is the midpoint endpoint of the five equal intervals used to estimate the area under the curve of f(x) between x = 0 and x = 10.