Answer:
B
Step-by-step explanation:
11+7=18
I believe they are: (2,8), (4,6), (1,7), and (3,5) I could be wrong, but I'm almost certain that's it. Hope that helps.
Answer:
9 and 10
Step-by-step explanation:
Answer:
11/20
Step-by-step explanation:
simplify 22/40