Use the Gauss-Jordan method to solve the system of equations. 2x - 2y = -8 6x - 6y = 3
A. 
B. (-8, 3)
C. (3, 3)
D. No solution
Answer: D
Mathematics
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Evaluate the expression for the given replacement values.-x - z
for x = -2 and z = 7
A. 9 B. -9 C. -5 D. 5
Mathematics
Write the ratio as a ratio of whole numbers using fractional notation. Write the fraction in simplest form.6.14 to 4.85
A. 
B. 
C. 
D. 
Mathematics
Fill in the blank with one of the words or phrases listed below. 
The basic unit of length in the metric system is the 
.
A. perimeter B. meter C. gram D. liter
Mathematics
Answer the question.Choose the expression that is equivalent to the following: 1(6x3)
A. 7x3 B. 1 C. 6x3 D. 6x4
Mathematics