Answer:

Step-by-step explanation:
The mid point can be found with the formula

The given coordinates are
and
.
Replacing coordinates in the formula, we have

Therefore, the mid point of the segment PQ is 
Answer:
See below.
Step-by-step explanation:
A. Converting 2/9 to a decimal:
-------------------------------------
9 ) 2.0
_
the quotient is 0.2 recurring (0.2222.........) which can be written as 0.2
3 because the numbers for x are all different
Answer:
1/4
Step-by-step explanation:
20n=5
n=5/20
n=1/4
therefore, it's 1/4