Solve using Cramer's rule. 5a+ 5c = 70-4a + 3b - 5c = -41-7a - 8b= -112
A. (8, 7, 6)
B. (8, -7, -6)
C. (9, 5, 6)
D. (7, 6, 7)
Answer: A
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A. No B. Yes
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A. 
B. 
C. 
D. 
Provide an appropriate response. Is the number 12.3 rational?
A. Yes B. No