Use the substitution method or the elimination method to solve the system. If the system has infinitely many solutions, express the ordered pair in terms of x or y. 3x + y = 6-6x - 2y = -12
A. 
or (y, -3y + 6)
B. (x, 3x + 6) or 
C. (x, -3x + 6) or 
D. no solution
Answer: C
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Solve the problem.A land developer wants to develop 8 acres of land. Each lot in the development is to be 
of an acre. How many lots will the land developer have in the 8 acres?
A. 
lot
B. 1
lots
C. 2
lot(s)
D. 28 lots
Solve the problem.A plane flies 450 miles with the wind and 350 miles against the wind in the same length of time. If the speed of the wind is 24 mph, what is the speed of the plane in still air?
A. 192 mph B. 217 mph C. 197 mph D. 182 mph
Convert. Round to the nearest tenth unless otherwise indicated.The temperature was recorded at 31°C. What is this temperature in degrees Fahrenheit?
A. 1.3°F B. 49.2°F C. 113.4°F D. 87.8°F
Simplify.|-63|
A. -63
B. 
C. 63
D. 0