Suppose you have a mean standardized score of 1200 points with a standard deviation of 200 points. this data is normally distributed. what is the z-score of 1300 points?

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)

Find the length of the radius of a circle with the center at -7+2i and a point in the circle at 33+11i