Evaluate the expression for the given values of the variables.5x2 + 7y for x = 8, and y = 3
A. 1621
B. 341
C. 1065
D. 101
Answer: B
Mathematics
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Provide an appropriate response.A student knows that 
= 38. Can 
be found, and if so, what is it?
A. No B. Yes, -38
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Solve.- 
k = 
A. 7 B. -4 C. 6 D. -1
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Solve the system by the substitution method.
A. {(8, 2), (-8, -2), (8, -2), (-8, 2)} B. {(8, 2), (-8, -2), (2, 8), (-2, -8)} C. {(-8, -2), (-2, -8), (-8, 2), (-2, 8)} D. {(8, 2), (2, 8), (8, -2), (2, -8)}
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Provide an appropriate response.If a, b, and c are real numbers, is this statement true or false? 
A. True B. False
Mathematics