Answer:
The area is 
Step-by-step explanation:
I assume that the figure is a square
The area of a square is equal to

where
b is the length side of the square
In this problem we have

substitute in the formula


The third one is the correct answer
Answer:
Part 1) 
Part 2) 
Step-by-step explanation:
Part 1) What is the length of LN?
To find out the length LN subtract the coordinate of L from the coordinate of N
so

Part 2) What is the length of MN?
To find out the length MN subtract the coordinate of M from the coordinate of N
so

6 because in 9 years Travis will be 30 and divide that by 2 is 15. 15-9=6