To solve this problem you must apply the proccedure shown below:
You must switch the variables, and then, you must solve for
, as following:

Therefore, as you can see, the answer is: 
Perimeter is distance around the outside white area is the space inside the shape
so it's 28000 feet above ground, to start with, then every passing minute "m" is dropping by 2000 feet, let's see,
1 minute.........................28000 - 2000(1)
2 minutes......................28000 - 2000(2)
3 minutes......................28000 - 2000(3)
4 minutes......................28000 - 2000(4)
m minutes.....................28000 - 2000(m)
h = 28000 - 2000m.
I can't actually see it good can you do it over please.
Answer:

Step By Step Explanation:
Goal: Write an equation that can be used to find her balance after 't' years
Deposit: $3,000
Interest: 4.2%
Turn 4.2% Into Decimal
Decimal: 0.42
't': 't' is undefined, so 't' stays the same
Balance = B
Balance = 3,000 Multiplied By 1 + 0.42. That is then multiplied by itself 't' times