According to Boyle's law, the pressure, P, of a compressed gas is inversely proportional to the volume, V, of the gas. If the
pressure of a sample of gas is 20 psi when its volume is
500 cubic inches, what is the pressure when the gas is
compressed to a volume of 400 cubic inches?

Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c