Solve the system of equations by substitution.3x + y = 132x - 7y = 24
A. (5, 2)
B. (-5, -2)
C. (-5, 2)
D. (5, -2)
Answer: D
Mathematics
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a. 4x3y5 b. 16x3y4 c. 16x2y4 d. 4x2y4 e. 4x4y4
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Provide an appropriate response.Cost is equal to 100% when markup is based on the cost.
A. True B. False
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Find the missing values.
A. 2%, $72.00 B. 21%, $72.00 C. 22%, $72.00 D. 20%, $72.00
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Find the square root.- 
A. 
B. Not a real number
C. - 
D. - 
Mathematics