Please help me with this question

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Evaluate the expression. (9 + 5)(3 + 2)0

18 16 11 45 33 11 33 14 18 11 what is the mode for this data set