Patrick earns x dollars per hour for his regular 40 hours per week. he also works 5 hours overtime each week, at a double-time rate. express his annual salary algebraically.

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample