Please solve the question below

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?

Use the distributive law to multiply. 3(4x + 5y + 6)

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab