Solve. Simplify the answer.Barat walked 
mile to his biology class, 
mile to his art class, 
mile to his calculus class, and then back to his dormitory. If he walked 1 mile altogether, how far did he walk from his calculus class to his dormitory?
A. 
mi
B. 
mi
C. 
mi
D. 
mi
Answer: A
Mathematics
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C.
?
D.
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E.
?None of the above.
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?
What will be an ideal response?
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B. 
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