Answer:
23. x= -2/5 x= -5
24. x= 3/4 x= -1/6
25. x= 7/3. x= -5/4
26. x= 3 x= -2/3
27. x= 1. x= -2/7
28. x= 9/4. x= -1/3
29. x= 2/5 x= 1/3
30. x= 2/3 x= 1/2
-14.2, -7.8, 12.6, 15.3
Step-by-step explanation:
51
450 < 10x - 1x
450 < 9x
50 < x
you must sell 50 tickets to break even; 51 to make a profit