Tim is opening up a bookstore, where he sells both new and old books. he charges $11.50 for a new book, and $4.50 for an old book. what was tim's revenue last month if he sold 15 new books and 12 old ?

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