Subtract.0 - 17
A. 0
B. 17
C. -17
D. 
Answer: C
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Solve the problem.Joan can mow a 4-acre field in 5 hours. How long would it take her to mow a 3.6-acre field? (Round to the nearest hundredth.)
A. 6.50 hr B. 7.50 hr C. 4.50 hr D. 4.00 hr
Simplify the expression using the order of operations. 9.9(2.2 - 0.95) - 4.37
A. 16.745 B. 16.46 C. 26.815 D. 8.005
Solve the problem.The table lists the average composite scores on a national entrance exam for selected years. 
Make a line graph of the data. If the graph represents a piecewise-linear function f, find a symbolic representation for the piece of f located on the interval 
A. f(x) = 0.75x - 1358 if 1984 ? x ? 1988
B. f(x) = 4.4x - 8606.9 if 1988 ? x ? 1990
C. f(x) = 122.7 if 1988 ? x ? 1990
D. f(x) = 131.5 if 1984 ? x ? 1986
Solve the equation by factoring.2a2 + 8 = a2 + 6a
A. a = 4, 2 B. a = 4 C. a = 4, 3 D. a = -4, 3