Solve the problem.If 10 is decreased to 5, the decrease is what percent of the original number?
A. 50%
B. 0.5%
C. 5%
D. 0.005%
Answer: A
Mathematics
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Subtract.16.25 - 8.555
A. 24.805 B. 7.695 C. 25.805 D. 7.795
Mathematics
Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, give the solution with y arbitrary.x + y = 3x - y = -4
A. 
B. 
C. ?
D. 
Mathematics
Multiply, then simplify the product. Assume that all variables represent positive real numbers.(
+ 1)(
- 1)
A. 12 - 2
B. 14
C. 12 + 2
D. 12
Mathematics
Solve the inequality and graph the solution set.
< 9
A. -11 < g < -7 ; (-11, -7)
B. -7 < g < 11 ; (-7, 11)
C. No solution
D. -7 ? g ? 11 ; [-7, 11]
Mathematics