Answer:
4. Correct
5. Correct
6. times 2
Step-by-step explanation:
4. 3, 6, 12, 24, ....
6 - 3 = 3
12 - 6 = 6
24 - 12 = 12
Answer: 2n (n been previous term)
5. 1, 3, 9, 27, ....
3 - 1 = 2
9 - 3 = 6
27 - 9 = 18
Answer: 3n (n been previous term)
6. 1/4, 1/2, 1, 2, .....
1/4 * 2 = 1/2
1/2 * 2 = 1
1 * 2 = 2
Answer: 2n (n been previous term)
//Hope it helps.