Answer:
3
Step-by-step explanation:
It is 3 because fi you multiply 5 by 3 you get 15, and if you multiply 10 by 3 you get 30. Subtract 30 by 6 and get 24. And finally, if you multiply 2 by 3 it gives you 9. 9+12= 21.
The answer is 3, hope this helped
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
absolutely no idea if this is right but i put the first one
