Find the missing numbers. Round rates to the nearest tenth of a percent and dollar amounts to the nearest cent.
A. Cost Price: $28.46
Markup: $12.80
B. Cost Price: $18.57
Markup: $22.69
C. Cost Price: $12.80
Markup: $28.46
D. Cost Price: $22.69
Markup: $18.57
Answer: A
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Find the opposite of the number.9
A. -9
B. 
C. 9
D. - 
Compute AB, if possible.A = [-8 2 4] and B = 
A. [-40 0 -12]
B. [154]
C. 
D. [-52]
Solve the problem.The time it takes to complete a certain job varies inversely as the number of people working on that job. If it takes 24 hours for 13 carpenters to frame a house, then how long will it take 30 carpenters to do the same job? Round to the nearest tenth when necessary.
A. 30 hours B. 16.3 hours C. 10.4 hours D. 40 hours
If 
is the Dow Jones Average at time ?t and 
, is it possible that the Dow will fluctuate indefinitely into the future?
?
A. yes B. no