Use proportions to solve the problem.If 7 sandwich rolls cost $1.12, how much will 23 rolls cost?
A. $9.84
B. $7.84
C. $4.68
D. $3.68
Answer: D
Mathematics
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j - 
k
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A. 
B. 
C. 
D. 
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For the following standard minimum problem write the initial tableau of its dual problem.Minimize 
subject to
What will be an ideal response?
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Add. Do not use a number line except as a check.- 
+ 
A. - 
B. - 
C. 
D. 
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