Change the decimal to a percent.0.398 

A. 0.602%
B. 39.8%
C. 0.398%
D. 60.2%
E. 3.98%


Answer: B

Mathematics

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, , .
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A.
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According to automobile association of a country, on March 27, 2009, the national average price per gallon of regular unleaded (87-octane) gasoline was $2.07, and the price of premium unleaded (90-octane) gasoline was $2.25. Write an objective function that models the cost of the blend of mid-grade unleaded gasoline (89-octane). ?

A. C = 2.25x - 2.07y B. C = 87x + 89y C. C = 2.07x + 2.25y D. C = 87x + 90y E. C = 90x + 89y

Mathematics