Use Cramer's Rule (if applicable) to solve the system of equations.
A. {(x, 16x - 4)}
B. {(x, 4 - 8x)}
C. {(x, 8x - 4)}
D. ?
Answer: C
Mathematics
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Solve for x.2 : 13 = x : 39
A. 6 B. 2 C. 26 D. 78
Mathematics
Supply the missing numbers. Round decimals to the nearest thousandth and percents to the nearest tenth of a percent.fractiondecimalpercent?0.032
A. 
3.2%
B. 
0.32%
C. 
3.2%
D. 
0.32%
Mathematics
Consider the following bar graph. How many barrels of oil per day were used by Canada?
A. 0.19 million barrels B. 19.2 million barrels C. 14.8 million barrels D. 1.9 million barrels E. 5.8 million barrels
Mathematics
Simplify. Assume that all variables represent positive real numbers.- 
A. -7
B. -6
C. 7
D. -5
Mathematics