Answer:
1,2,3,6,9,18,27,54 is 54, 1,2,4,8,16,32,64 is 64
Step-by-step explanation:
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Answer:

Step-by-step explanation:





Answer:
2.
Step-by-step explanation:
The common difference is 5 so the first number is 7 - 5 = 2.
Answer: 1/4
Step-by-step explanation: