Solve the equation by the method of your choice.x2 + 12x + 15 = 0
A. {6 - 
, 6 + 
}
B. {6 + 
}
C. {-12 + 
}
D. {-6 - 
, -6 + 
}
Answer: D
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Evaluate 
.g(x, y, z) = x2 + y2 + z2; G is the surface of the cube formed from the coordinate planes and the planes 
and 
A. 7
B. 
C. 5
D. 
Solve the problem.The following is a real estate commission on the selling price of a house. 6% for the first $100,000, and 3% for the amount which exceeds $100,000A realtor receives $11,370 for selling a house. What was the selling price?
A. $179,000 B. $279,000 C. $5370 D. $379,000
Solve the equation.11w = 144 - 5w
A. 9
B. 128
C. 
D. 
Solve the problem.A storage company rents their 10' × 10' space for $66.99 per month. They have a smaller 5' × 7' space available for 0.6 times the cost of the larger unit. What is the rental cost of the smaller space (round to the nearest cent)?
A. $46.89 B. $40.19 C. $111.65 D. $26.80