Perform the indicated operation.(4n7 - 6n + 3n5) + (9n5 + 8n7 + 7n)
A. 12n7 + 12n5 + 1n
B. 2n7 + 13n5 + 10n
C. 25n13
D. 12n + 12n7 + 1n5
Answer: A
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Solve the problem.When flying the great-circle route from Fairbanks, Alaska ( latitude 64.8° north, longitude 147.85° west) to St. Petersburg, Russia (latitude 59.91° north, longitude 30.43° east), how close does the plane fly to the North Pole?.
A. ? 310.5 mi B. ? 31 mi C. ? 130 mi D. ? 3100 mi
Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Write the equation of the graph in its final position.The graph of y = x2 is translated 5 units to the left and 8 units downward.
A. y = (x - 8)2 + 5 B. y = (x + 5)2 - 8 C. y = (x + 8)2 - 5 D. y = (x - 5)2 - 8
Solve the problem.A ping-pong ball is dropped from a height of 9 ft and always rebounds 
of the distance fallen. Find the total sum of the rebound heights of the ball.
A. 3 ft B. 6 ft C. 13.5 ft D. 4.5 ft