Can anybody help me with the question please

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.

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?