1.	The speed of light in a vacuum is exactly 299,792,458 meters per second. Write this number in scientific notation with the factor rounded to the hundredths place.
		A.	3.00 × 109	B.	3.00 × 108
		C.	2.99 × 109	D.	2.99 × 1010
		Hint
	2.	Which symbol makes the following statement true? 568 ______ 5.1 × 102
		A.	<	B.	=
		C.	>	D.
		Hint
	3.	Which set of numbers is ordered from least to greatest?
		A.	1.01 × 106; 1.0 × 107; 10,100,000; 101,000,000
		B.	10,100,000; 1.01 × 106; 101,000,000; 1.0 × 107
		C.	101,000,000; 10,100,000; 1.0 × 107; 1.01 × 106;
		D.	10,100,000; 101,000,000; 1.01 × 106; 1.0 × 107
		Hint
	4.	Michigan’s population is almost 10,000,000 people. Texas’ population is twice that of Michigan. About how many people live in Texas?
		A.	2.0 × 109	B.	2.0 × 106
		C.	2.0 × 107	D.	2.0 × 108
		Hint
	5.	The Mojave Desert in southern California is 15,000 square miles. The Sahara Desert in northern Africa is about 233 times larger than the Mojave Desert. How big is the Sahara Desert?
		A.	3.5 × 103 sq mi	B.	3.5 × 106 sq mi
		C.	3.5 × 104 sq mi	D.	3.5 × 105 sq mi
		Hint