Answer:
Step-by-step explanation:
4.1.1) 1,3,9...
each term is multiplied by 3
The next two terms are: 9*3 = 27 ; 27*3 = 81
1,3,9,27,81.....
4.1.2) -15,-8,-1,......
Each term is added to 7 to get the next term
The next two terms are: -1+7 = 6 ; 6+7=13
-15,-8,-1,6,13.....
