List the terms of the expression.12x + 7y
A. 12, 7
B. 12x, -7y
C. 12, x, 7, y
D. 12x, 7y
Answer: D
Mathematics
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Convert the units.235 g = 
kg
A. 23,500 kg B. 0.0235 kg C. 0.235 kg D. 235,000 kg
Mathematics
Write a numerical expression for the phrase and simplify it.Seven-ninths of the difference between -9 and -27.
A. 7(9) [(-9) - (-27)]; 14
B. 
[(-9) - (-27)]; 14
C. 
+ [(-9) - (-27)]; 42
D. 7(9) [(-9) - (-27)]; 1134
Mathematics
Solve by elimination and check.x + y = -8x - y = 4
A. (2, -5) B. (-3, -5) C. No solution D. (-2, -6)
Mathematics
Perform the indicated operations. Write the result using only positive exponents. Assume all variables represent nonzero real numbers.
A. 
B. 
C. -x12
D. x12
Mathematics