Sagot :
14. 3,9,_,81
answer;
15. 12, 17, 22,_,32
answer; 27
16. 1, 10,_,1000
answer; 100
17. 17,20,23,_,29
answer; 25
18. 50, 45,_,35,30
answer; 40
14. 3,9,_,81
answer;
15. 12, 17, 22,_,32
answer; 27
16. 1, 10,_,1000
answer; 100
17. 17,20,23,_,29
answer; 25
18. 50, 45,_,35,30
answer; 40