When exercising a person's pulse rate should not exceed a certain limit which depends on his or her age. this maximum rate is represented by the expression 0.8(220-a)where a is age in years. find the age of a person whose maximum pulse is 152.

Select the correct answer from each drop-down menu. james needs to clock a minimum of 9 hours per day at work. the data set records his daily work hours, which vary between 9 hours and 12 hours, for a certain number of days. {9, 9.5, 10, 10.5, 10.5, 11, 11, 11.5, 11.5, 11.5, 12, 12}. the median number of hours james worked is . the skew of the distribution is