Denise has multiplied (2r – 3)(2r + 3) to get 4r2 – 9. after looking at her work, hyder says her solution must be incorrect because multiplying two binomials will always produce a trinomial. which student is correct? explain the error to the incorrect student. me need it in time .

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