Which of the following is not a characteristic of gases?

	A.	They mix rapidly.
	B.	They are highly compressible.
	C.	They have a definite volume and shape.
	D.	They are low in density.

Blood pressure measurement is reported as the ratio of systolic to diastolic blood pressure readings. If the ratio reported is 5.91/3.11 inches Hg, what is its corresponding ratio in mm Hg?

(Conversion factors: 1 inch = 2.54 cm, 1 cm = 10 mm)

	A.	175/60 mm Hg
	B.	220/100 mm Hg
	C.	200/90 mm Hg
	D.	150/79 mm Hg