Yeahhh, please help :,) :D

The highest common factor of 132 and 220

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.

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol