Answer:
1.) 11,13,15
Rule: Add 2
2.) 16,18,20
Rule: Add 2
3.) 22,25,28
Rule: Add 3
4.) 38,51,66
Rule: Add odd numbers
5.) 5/6,6/7,7/8
Rule: Add 1/1
6.) 36,49,64
Rule: Add odd numbers
7.) 4,2,0
Rule: Minus 2
8.) Sorry I don't know this
9.) 1/5,1/6,1/7
1/5,1/6,1/7Rule: Add 0/1
10.) 20,10,0
Rule: Minus 10
Step-by-step explanation: