no 1 2 3 4 5.A B C D jawaban yg singkat mudah di pahami.

1.a {2}
b {6}
c.{8}
3 a {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}
b { 6,7,89,10,11,12,1314,15,16,17,18,19,20}
C {1,3,5,7,9,11,13,15,17,19}
d{4,6,8,1012,14,16,18}b