Solve the system by substitution.  x - 2y = 9-7x - 2y = 49

A. {(7, -5)}
B. {(-5, -7)}
C. {(-4, -8)}
D. ?

Answer: B

Mathematics

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A. , 1
B. , 0
C. , -1
D. , -1

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A. f(x) = x3 ; g(x) = (5 - 2x)2 B. f(x) = 5 - 2x3 ; g(x) = x2 C. f(x) = (5 - 2x)3 ; g(x) = x2 D. f(x) = x2 ; g(x) = 5 - 2x3

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A.
B. 0
C. 1
D. undefined

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Round the decimal to the given place value.1.2661 to the nearest thousandth

A. 1.26 B. 1.27 C. 1.266 D. 1.267

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