At 310 K, the partial vapour pressures of a substance B dissolved in a liquid A are

Question:

At 310 K, the partial vapour pressures of a substance B dissolved in a liquid A are as follows:
xB 0.010 0.015 0.020
Pg/kPa 82.0 122.0 166.1
Show that the solution obeys Henry's law in this range of mole fractions,
and calculate Henry's law constant at 310 K.