according to Le chatelier's principle how would a change in pressure affect a gaseous system in equilibrium?

Assume that the variables x and y are inversely related. if k = 18, what is the value of y for each of the following points? be sure and record your data to be used in the following problem.

The volume of helium in a blimp is 6.28 x 10^9 millimeters. the density of helium in the blimp is .1786 kilogram/meter^3. find the mass of the helium in the blimp.

Calculate the concentration of all species in a 0.165 m solution of h2co3.