If x varies directly as 2n+1, and n=4 when x=6, find n when x=18

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.

Is it true or false i’m trying to pass this test so i can leave school

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"