Answer:
(a) Next number is 8
(c) Next alphabet is M
Step-by-step explanation:
Given


Solving (a): The next number
In the given sequence, each item is gotten by adding 2 to the previous item.
i.e.


So, the rule is: Add 2
Hence, the next number is:


Solving (c): The next letter
In the given sequence, each letter is gotten by skipping two alphabets i.e.
![D \to A []\ [] D](https://tex.z-dn.net/?f=D%20%5Cto%20A%20%5B%5D%5C%20%5B%5D%20D)
![G \to D []\ [] G](https://tex.z-dn.net/?f=G%20%5Cto%20D%20%5B%5D%5C%20%5B%5D%20G)
![J \to G []\ [] J](https://tex.z-dn.net/?f=J%20%5Cto%20G%20%5B%5D%5C%20%5B%5D%20J)
So, the rule is: skip 2 alphabets
![Next: J \ []\ [] M](https://tex.z-dn.net/?f=Next%3A%20J%20%5C%20%5B%5D%5C%20%5B%5D%20M)
The next letter is M
Solving (b); The next figure
This question requires an attachment.
Since, none is given; I will give a general explanation.
First, you need to study the pattern, identify the rule, then apply the rule
Take for instance, the attached image.
The pattern follows that:
1 layer, 3 dots
2 layers, 6 dots
3 layers, 9 dots
4 layers, 12 dots
This implies that,
Rule: Add 1 layer and 3 dots
So, the next will be:
5 layers, 15 dots