Answer:
216x
Step-by-step explanation:
- Write it out:
- Add in x: 216x
I hope this helps!
1 12 13 14 15 16 17 18
2 23 24 25 26 27 28
3 34 35 36 37 38
4 45 46 47 48
5 56 57 58
6 67 68
7 78
8
approximately 28 pairs. (breakdown above) hope this helps
Answer:It’s. B
Step-by-step explanation: