Answer:
The pressure is 
Explanation:
From the question we are told that
The depth of the swimming pool is 
The density of water is 
Generally the total pressure exerted on the bottom of the swimming pool is mathematically represented as

Here
is the atmospheric pressure with value
So
![P = 101325 + [1000 * 9.8 * 3]](https://tex.z-dn.net/?f=P%20%3D%20101325%20%2B%20%5B1000%20%2A%209.8%20%2A%203%5D)
=> 
=> 
i belive the answe is c and if im wrong im tarrably sorry
Just look at the graph, and find a curve that has fallen to
half of its original value 95 = 47.5 in 13 B years.
Do I really hafta tell you which one it is ?
It's curve ' C ' .