Whoever gets this correct first gets brainlest

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.

What is the value of x when x + 7 = 21?

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?