Solve the problem.A grain dealer sold to one customer 4 bushels of wheat, 6 of corn, and 4 of rye, for $36.20; to another, 6 of wheat, 4 of corn, and 4 of rye, for $36.60; and to a third, 4 of wheat, 4 of corn, and 6 of rye, for $39.20. What was the price per bushel for corn?
A. $3.60
B. $2.10
C. $2.30
D. $2.80
Answer: B
Mathematics
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A. 
B. 
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D. 
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A. f(x) = 
B. f(x) = 
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A. 
B. {0, ±9i}
C. {0, -9i}
D. {±9i}
Mathematics