A health insurance plan costs $150 each month plus an extra $25 for each doctor's visit. Write an equation that models the total yearly
cost, c, of the plan as a function of the number of doctor's visits, n.

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

How do your peer relationships affect your overall health status? what can you do to improve your peer relationships?

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625