Find each percent decrease. round to the nearest percent. from $16 to $4

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

Answer this question only if you know the 30 points and

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.