Answer:
1.20,16,12,8,4,0,-4
-4+4=0 0+4=4 4+4=8 8+4=12 12+4=16
16+4=20
2.3,5,7,9,11,1315
3+2=5 5+2=7 7+2=9 9+2=11 11+2=13
13+2=15
3.2/3,3/4,4/5,5/6,6/7,7/8
2/3+1/1=3/4 3/4+1/1=4/5 4/5+1/1=5/6
5/6+1/1=6/7 6/7+1/1=7/8
4.-2,-4,-6,-8,-10,-12
-2+-2=-4 -4+-2=-6 -6+-2=-8 -8+-2=-10
-10+-2=-12
5.5,7,9,11,13,15,17
5+2=7 7+2=9 9+2=11 11+2=13 13+2=15
15+2=17
Step-by-step explanation:
1.rule:n=4
2.rule:n=2
3.rule:n=1/1
4.rule:n=-2
5.rule:n=2
