Answer:
a) We get 
So, Is the result of A+B is a polynomial:Yes
b) We get 
So, Is the result of A-B is a polynomial:Yes
c) We get 
So, Is the result of A.B is a polynomial:Yes
Step-by-step explanation:
We are giving the polynomial equations:

We need to find
a) A+B

So, we get 
So, Is the result of A+B is a polynomial:Yes
b) A-B

So, we get 
So, Is the result of A-B is a polynomial:Yes
c) A . B

So, we get 
So, Is the result of A.B is a polynomial:Yes
E would be (-8,4), F would be (16,-8) and G would be (-24,-16). This is the correct answer. I hope this helps.
The next fraction in the given sequence is; 7/14
We are given the sequence;
3/14, 2/7, 5/14, 3/7.
To get the next fraction in the sequence, we have to find the pattern of the differences.
Difference between first and second term is;
2/7 - 3/14 = 1/14
Similarly, for 2nd and 3rd term;
Difference = 5/14 - 2/7
Difference = 1/14
Therefore,the next fraction in the sequence will be gotten by adding 1/14 to 3/7
Next fraction = 3/7 + 1/14
Next fraction = 7/14
Read more on arithmetic sequence at;
brainly.com/question/1145052
Find the value of x
x+9.8=14.7
x=4.9
Then plug it in the second equation
8(4.9-3.7)
8(1.2)
9.6
Hope this helps.