Suppose a Pony Express rider was paid $168 for 14 weeks of work. If he was paid the same amount each week, how much was he paid for one week of work?

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.

What is the frequency of the sinusoidal graph?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.