A = 1/2bh...for h
multiply both sides by 2
2A = bh
now divide both sides by b
(2a)/b = h
There are no given coordinates, so it's impossible to answer your question. I'm sorry.
Answer:

- Sales price= $
List price=L Discount

Step-by-step explanation:
The percentage discount is 
The discount is always given on the list price.

Let the list price be L, then
List price=L
Sales price= $
Discount
We substitute into the equation to get:


Divide both sides by 0.805


The list price of the swimming pool is $1450
B is 540.
C is 720.
D is 900.
E is 1080.
I'm tired too, I have been doing math for 3 hours now.