Corey has 4929 songs in his computer music library. The songs have a mean duration of 248.6 seconds with a standard deviation of 114.89 seconds. One of the songs is 363 seconds long. What is its z-score?

The number of calories you burn depends on your weight. a 110-pound person burns 163 calories during 30 minutes of tennis. find the number of calories that a 190-pound person would burn during the same activity, assuming they burn calories at the same rate.