If a dice is to be rolled until all sides have appeared at least once, find the expected number of times that outcome 1 appears. (remark: let n be the number of rolls until all sides have appeared. computing e[n] is what is called a coupon-collecting problem; see section 7.2 in the textbook.)

Three students each examine the system of linear equations shown. 8x + 4y = 16 8x + 2y = 8 caleb says there is exactly one solution. jeremy says there is no solution. kim says there are infinitely many solutions. which student is correct? provide mathematical reasoning to support your answer. answer in complete sentences. : d