Pls help I cant do chemistry

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.

Find the quotient. 50a2 – 98b2 -5a +7b

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?