The solution x=71 is a solution to which of the following equations?

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal line for an ideal gas whereas the curve for 200°c does not?

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?