Hi,

3. What is the next number in the sequence: 3, 8, 18, 38, ,...

Note: 8 = 3 + 5(2^0), 18 = 8 + 5(2^1), 38 = 18 + 5(2^2)... 

 4. What is the next number in the sequence: 5, 9, 17,33,,...

Note: 9 = 5 + 2^2, 17 = 9 + 2^3, 33 = 17 + 2^4



5. What is the next number in the sequence: 9, 3, 1, 1/3,,... 

 Note: 

6. What is the next number in the sequence: 24, 12, 6, 3,,... 

 Note:  

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