1.	Write the number 4.5 × 10-6 in standard form.
		A.	0.045	B.	0.0000045
		C.	0.0045	D.	0.00045
		Hint
	2.	Express 7,000,000,000 in scientific notation.
		A.	7 × 1012	B.	7 × 106
		C.	7 × 108	D.	7 × 109
		Hint
	3.	Express 2,475,000 in scientific notation.
		A.	2.475 × 105	B.	2.475 × 103
		C.	2.475 × 106	D.	2.475 × 10-6
		Hint
	4.	On July 18, 2001, the United States national debt was $5,633,569,000. Write this number in scientific notation.
		A.	5.633569 × 109	B.	5.633569 × 108
		C.	5.633569 × 10-9	D.	5.633569 × 1010
		Hint
	5.	The population of five cities in California is given in the table. Order the cities according to the population from least to greatest
		A.	San Diego, Los Angles, Long Beach, San Francisco, San Jose	B.	Los Angeles, San Diego, San Jose, San Francisco, Long Beach
		C.	San Diego, Los Angeles, San Diego, San Francisco, San Jose	D.	Long beach, San Francisco, San Jose, San Diego, Los Angeles
		Hint