Chem help! Atmospheric pressure/volume problem!?

A frog releases an air bubble at the bottom of a lake, which is 2.05 m deep. By what factor would the volume of the bubble increase by the time it reaches the surface? ume the density of the lake water is 1.01g/cm^3 (1atm=1.01325 x 10^5 Nm^-2 and the acceleration due to gravity is 9.8067 ms^-2) Take the atmospheric pressure at the surface of the lake to be exactly 1 atm.