Answer:
The question
after change the mixed number to improper & using KCF will become : 
Option B is correct option.
Step-by-step explanation:
We need to change the mixed number to improper & use KCF to rewrite the question.
The expression is: 
First converting mixed fraction into improper fraction
Multiply whole number with the denominator i,e (3*2=6) now add the numerator i.e (6+1) = 7/2
Solving:

Using KCF
KCF stands fro Keep it, Change it, Flip it.
It is used when division sign is converted to multiplication the term (1/3) is reversed to (3/1)
So, our expression will be

So, The question
after change the mixed number to improper & using KCF will become : 
Option B is correct option.
Answer:
A. 13
Step-by-step explanation:
When you plug the numbers in, 4 times 13 = 52+9=61 and 63 is still greate so anything above 13 would make the sentence correct. So that is why 13 is NOT a solution.
Answer:
X= 22
Step-by-step explanation:
x-5=17
To solve,
Since five is being subtracted from x, to get x by itself, add five to both sides
x-5=17
+5 +5
X= 22
The answer is 22 :)