Solve the equation. First simplify the expression by combining like terms.7(k - 8) - (6k - 8) = 3
A. - 3
B. - 51
C. - 45
D. 51
Answer: D
Mathematics
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Rewrite the expression without the grouping symbols.-(x - 5y)
A. -x - 5y B. -5xy C. -x + 5y D. x + 5y
Mathematics
Evaluate 
What will be an ideal response?
Mathematics
Solve the problem.The table lists the average annual cost (in dollars) of tuition and fees at a certain 2-year college for selected years, where year 1 represents 1992, year 3 represents 1994, and so on. The equation 
can be used to approximate the data. Predict the average annual cost in 2007 to the nearest dollar. 
A. $1495 B. $1555 C. $1585 D. $1525
Mathematics
Solve the system.-2x - y + 4z = -3-2x + 5y - 9z = 148x - 8y + z = -31
A. {(-1, 5, 2)} B. {(1, 5, 1)} C. ? D. {(1, 1, 5)}
Mathematics