1.	Two solid rocket boosters provide the main thrust to lift the space shuttle off the launching pad. Each booster weighs approximately 1.92 × 105 pounds. Express this weight in standard form.
		A.	19,200,000 pounds	B.	19,200 pounds
		C.	0.0000192 pounds	D.	192,000 pounds
		Hint
	2.	Express 2,475,000 in scientific notation.
		A.	2.475 × 10-6	B.	2.475 × 105
		C.	2.475 × 106	D.	2.475 × 103
		Hint
	3.	Express 0.0000000139 in scientific notation.
		A.	1.39 × 10-8	B.	1.39 × 10-9
		C.	1.39 × 108	D.	1.39 × 10-7
		Hint
	4.	Write 4.06 × 10-4 in standard form.
		A.	0.00406	B.	0.000406
		C.	4,060	D.	40,600
		Hint
	5.	The amount of corn produced by the major corn-producing countries is given in the table. Order the countries according to the amount of corn produced from greatest to least.
		A.	Brazil, Mexico, France, United States, China	B.	France, Mexico, Brazil, China, United States
		C.	United States, China, Brazil, Mexico, France	D.	Brazil, United States, Mexico, France, China
		Hint