Solve by the substitution method.0.2x + 0.8y = -5.80.1x - 0.1y = 0.6
A. {(-7, -1)}
B. {(x, y)| 0.2x + 0.8y = -5.8}
C. ?
D. {(-1, -7)}
Answer: D
Mathematics
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- 
= 
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Evaluate the indicated function for 
and 
.
?
?
?
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D. 0
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