List the factors of 24,30, and 24. Factors of 24: 1,2,3,4,6,8,12,24. Factors of 30: 1,2,3,5,6,10,15,30. Factors of 42: 1,2,3,6,7,14,21,42. The highest number that all of these numbers is 6. Therefore, the greatest common factor of GCF of 24,30, and 42 is 6.
Answer:
No solution
Step-by-step explanation:
24a-22= -4(1-6a)
24a-22= -4+24a
-24a -24a
0-22= -4
-22= -4
That would be the last choice. Opposite meaning different sign
You can do C(6,2) which gives

which is
15!