Solve by the elimination method. 7x + 8y = 51 3x + 5y = 25
A. No solution
B. {(5, 3)}
C. {(5, 2)}
D. {(4, 3)}
Answer: C
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The question(s) that follow refer to the problem of finding the minimum spanning tree for the weighted network shown below.
Give the weight of the MST.
A. 12.5 B. 11.9 C. 12.8 D. 10.8 E. 11.3
Write an equation relating the variables in the situation described.The number of words W typed in t minutes if you type 29 words in one minute.
A. W = 
B. W = 29
C. W = t
D. W = 29t
Solve the problem.To solve the rational inequality 
? 2, you can first write the inequality with 0 on one side and the other side expressed as a single fraction. What value or values of x make the denominator of that fraction equal to 0?
A. {1} B. {-2} C. {-1} D. {-2, -1}
Write the algebraic expression without parentheses.-(7x - 7)
A. -7x - 7 B. -7x + 7 C. 49x D. 7x - 7