Perform the indicated operation. (-21)

A. - 
B.
C.
D. - 


Answer: A

Mathematics

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Tell whether the statement is true or false.Some real numbers are integers.

A. True B. False

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Solve the problem.How much pure acid should be mixed with 6 gallons of a 50% acid solution in order to get an 80% acid solution?

A. 3 gal B. 15 gal C. 9 gal D. 24 gal

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From the given list, identify the proper fractions.,  ,  ,  ,  

A.
B. ,  ,  
C. ,  ,  ,  ,  
D. ,  ,  ,  

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Find a function of the form f(x) = C ? bx, where b > 0, that is represented by the graph. 

A. f(x) = 5 ? 0.7x B. f(x) = 5 ? 0.9x C. f(x) = 4.5 ? 0.9x D. f(x) = 5 ? 1.1x

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