Perform the indicated operations.81 - 4 ? 6 ? 3
A. 171
B. 68
C. 1386
D. 9
Answer: D
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Determine whether the pair of fractions is equivalent.
and 
A. equivalent B. not equivalent
The graph shows the region of feasible solutions. Find the maximum or minimum value, as specified, of the objective function.objective function = x - 5y; minimum
A. -37 B. -61 C. -49 D. -13
Determine the size of the sample space for the experiment described.An 8-sided die is rolled. The sides contain the numbers 1, 2, 3, 4, 5, 6, 7, 8. State the number of elements in the sample space of rolling one die.
A. n(S) = 7 B. n(S) = 64 C. n(S) = 8 D. None of these
Solve the problem.A plane takes off from an airport on the bearing S29°W. It continues for 20 minutes then changes to bearing 
and flies for 2 hours 20 minutes on this course then lands at a second airport. If the plane' s speed is 420 mph, how far from the first airport is the second airport? Round your answer correct to the nearest mile.
A. 1111 mi B. 1110 mi C. 1011 mi D. 1010 mi