Question

The pressure P at the bottom of a swimming pool varies directly as depth of water. If the pressure is 125 paacal when the water is 2m deep ,find the pressure when it 4.5 meters deep.

Answer 1

That is basically wrong because you are ignoring the atmospheric pressure of the air above the water so the variation is NOT DIRECT
p = k x
but linear
p = patmosphere + k x

but if we ignore the physics and do it the way the math people want you to do it then
P at 4.5 m = 125 *4.5/2 = 281

Answer 2

because the gravity falls asleep in the World Series game and I have been there since before I'll see if you want me to do it for the day before yesterday was the last one was there