surface acting deep acting

how much is the hydrostatic pressure at the bottom of a lake 15m deep?

a block of wood weighing 30N is floating on the surface of water. what is the buoyant force acting on the block of wood?

P = rho*g*h, where rho – water density, g – gravitational acceleration, h – depth.
So, we get P = 1.45 atm = 147000 Pa.

Buoyant force is 30 N.