1.2,7,9,18,36,( ) A.54 B.64 C.70 D.76
2.164,100,68,( ),44 A.50 B.55 C.52 D.49
3.2,3,10,15,26,35,( ) A.38 B.42 C.48 D.50
4.1807,2716,3625,( ) A.5149 B.4534 C.4231 D.5847
5.-1,0,1,2,9,( ) A.11 B.82 C.729 D.730