Answer:
D. 1 atm
Step-by-step explanation:
Sea level = depth of 0 ft.
So, where 0 ft. is equals 1.0 atm pressure.
We have been given a graph that shows the relationship between pressure, p, in atms, and depth, d, in ft.
Since d represents depth, so at the sea level depth will be 0 feet.
Now let us see our graph to find the value of y at x equals 0.
We can see that at x equals 0, y is at 1. Therefore, the water pressure at sea level is 1 atm and option D is the correct choice.
I'm not sure if this helps but here you go!
Combine the fractions by finding a common denominator.
Exact Form:
39/56
47+18
=47+18
=32/56+7/56
=32+7/56
=39/56
That's how i got my answer
126720