Could someone please help me. I got all of them right except for 1. Can you tell me which one and the answer? Thanks

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 domain of the following expression: 1/(√x)-2

What is the solution to the equation below? 3/x-2+6=square root x-2 +8