Subtract.(7n7 - 11n5 - 2) - (-6n5 + 3n7 + 4)
A. -7n12
B. 4n7 - 5n5 + 2
C. 4n7 - 8n5 + 2
D. 4n7 - 5n5 - 6
Answer: D
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Solve the equation by the method of your choice. Simplify irrational solutions, if possible.2x2 + 12x = - 3
A. 
B. 
C. 
D. 
Solve.The weight of a person on or above the surface of the earth varies inversely as the square of the distance the person is from the center of the earth. If a person weighs 180 pounds on the surface of the earth and the radius of the earth is 3900 miles, what will the person weigh if he or she is 975 miles above the earth's surface? Round your answer to the nearest hundredth of a pound.
A. 114.70 lb B. 115.60 lb C. 115.20 lb D. 116.60 lb
Solve.7 = 8x - 9
A. 2 B. 12 C. 8 D. 9