Answer:
4
Step-by-step explanation:
Let the number to be added be represented by x. Then we want ...
The number is 4.
Answer:cannot read your writing
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
The first and last sequence have a common difference in them. The first having d = 4 and the second having d = 7.
The second and third have a common ratio instead and are geometric sequences. The second has r = 2, and the third having r = (-3)