1.	Which of the following is a unit rate?
		A.	60 Calories per serving	B.	2 hamburgers for $2.00
		C.	17 heartbeats in 15 seconds	D.	300 miles in 5 hours
		Hint
	2.	Express $112 for 14 hours as a unit rate.
		A.	$11/hr	B.	$8/hr
		C.	$9/hr	D.	$112/week
		Hint
	3.	Which of the following is not a unit rate?
		A.	65 miles per hour	B.	3 incidents each day
		C.	0.12 molecules per liter	D.	10 cm every 5 years
		Hint
	4.	Express $15 for 10 gallons as a unit rate.
		A.	$3 for 2 gallons	B.	$1.50 per gallon
		C.	$5 per gallon	D.	$1000 per ton
		Hint
	5.	Shuo ran 5 km in 20 min, Poloma ran 15 km in 40 min, and Keisha ran 3 km in 15 min. Who had the highest average speed?
		A.	Keisha
		B.	None of them; they all ran at the same average speed.
		C.	Poloma
		D.	Shuo
		Hint