1.	Express 7.6109 × 108 in standard form.
		A.	76,109,000	B.	7,610,900,000
		C.	0.000000076109	D.	761,090,000
		Hint
	2.	Express 2,475,000 in scientific notation.
		A.	2.475 × 106	B.	2.475 × 103
		C.	2.475 × 105	D.	2.475 × 10-6
		Hint
	3.	Express 0.0000000139 in scientific notation.
		A.	1.39 × 10-7	B.	1.39 × 10-9
		C.	1.39 × 108	D.	1.39 × 10-8
		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 × 108	B.	5.633569 × 10-9
		C.	5.633569 × 1010	D.	5.633569 × 109
		Hint
	5.	Write 4.06 × 10-4 in standard form.
		A.	0.00406	B.	0.000406
		C.	4,060	D.	40,600
		Hint