For a better understanding of the solution provided here please find the diagram attached.
Please note that in coordinate geometry, the coordinates of the midpoint of a line segment is always the average of the coordinates of the endpoints of that line segment.
Thus, if, for example, the end coordinates of a line segment are
and
then the coordinates of the midpoint of this line segment will be the average of the coordinates of the two endpoints and thus, it will be:

Thus for our question the endpoints are
and
and hence the midpoint will be:


Thus, Option C is the correct option.
Think of it this way. Let's say t= one. 1+8 is 9. Your answer is 9t. Think of a variable without a number as one.
The value of x in the given equation is 
From the question,
We are to solve the given equation
The given equation is

This becomes

From one of the laws of logarithms, we have that

and

∴
becomes

and


Now, subtract 6 from both sides


∴ 
Hence, the value of x in the given equation is 
Learn more on solving equations here: brainly.com/question/11802986
Answer:
see the explanation
Step-by-step explanation:
we know that
A mixed number is equal to sum a integer plus a fraction less than 1. The result is a fraction where the numerator will be always greater than the denominator (This fraction is called an improper fraction)
Example
----> a mixed number
a is a integer
b/c < 1
so

Adds the integer plus the fraction
---> an improper fraction