Simplify the complex fraction.
A. 
B. 0
C. -1
D. -9
Answer: A
Mathematics
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Solve by the substitution method.x + 8y = 57-2x + 7y = 47
A. {(0, 8)} B. {(-1, 8)} C. {(1, 7)} D. ?
Mathematics
Which number is more precise: 2.46 or 13.8.
What will be an ideal response?
Mathematics
Solve the system of equations.-0.2x + 0.3y - 0.2z = 1.6-0.4x - 0.3y + 0.2z = 0.80.2x - 0.4y + 0.3z = -1.9
A. (0.6, 4, 0) B. (0.8, 2, 0) C. (0.6, 2, -1) D. (-4, 2, -1)
Mathematics
Solve.The cube has sides of length 4y3 feet. Find its volume. 
A. 64y9 cu ft B. 12y27 cu ft C. 12y9 cu ft D. 64y27 cu ft
Mathematics