21 they have too be right next to each other and threy have too be right
Answer:
51
Step-by-step explanation:
450 < 10x - 1x
450 < 9x
50 < x
you must sell 50 tickets to break even; 51 to make a profit
we are adding 4 each time
10+4 = -6
-6 + 4 = -2
-2+4 = 2
2+4 =6
6+4 = 10
10+4 = 14
14+ 4=18
The 7th term is 18
