An auditorium has 20 rows of seats. The first row contains 40 seats. As you move to the rear of the auditorium, each row has 3 more seats than the previous row. How many seats are in the row 13? How many seats are in the auditorium? The partial sum -2+(-8) + (-32)++(-8192) equals Question Hala 744 = Find the infinite sum of the geometric sequence with a = 2, r S[infinity] = 3 7 if it exists.