[Jng88]

I'm working on my chemistry homework about gas-laws and this question has me completely dumb-founded.

10.15 (Question number in book)
(a)How high in meters must a column of water be to exert a pressure equal to that of a 760-mm column of mercury? The density of water is 1.0g/mL, whereas that of mercury is 13.6g/mL.
(b) What is the pressure in atmospheres on the body of a diver if he is 39 ft below the surface of the water when atmospheric pressure at the surface is 0.97 atm?

This question is coming from the Pearson textbook, "Chemistry The Central Science AP Edition."
Answers are given yet I'm very confused as to how to solve this.
Answers:
(a) 10.3m (b) 2.1 atm

Any help is appreciated, thank you!

[billnotgatez]

You have to show your attempts or thoughts at solving the question to receive help.
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hint: you have to think about the formulas you have been studying and apply some logical thought.
Also you may need to get your units of measurement in agreement.