Answer
an=a1+(n-1)d
Step-by-step explanation:
a2-a=9_2=7
a3-a2=16-9=7
a4-a3=23-16=7
a5-a4=30-23=7
Answer: 3 1/3 miles
Step-by-step explanation:
The answer is 60% but you can make it higher if your teacher let's you correct it.
The formula of an area of a square: 
a - side
We have: 
substitute:

The fromula of a perimeter of a square is: 
substitute:
