Solve the problem.It costs $42 per hour plus a flat fee of $16 for a plumber to make a house call. What is an equation of the form 
for this situation?
A. y = 42x + 16
B. y = 42x
C. y = 16x
D. y = 16x + 42
Answer: A
Mathematics
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= 1.
A. 
B. does not exist
C. 0
D. 
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Find the greatest common factor of the numbers in the group.1846, 101,250, 6750
A. 5 B. 12 C. 4 D. 2
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Find the axis of symmetry of the function.f(x) = 2x2 + 8x + 5
A. x = 2 B. x = -2 C. x = -3 D. x = 3
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Find the magnitude of the vector.u = 
A. 
B. 5
C. 
D. 
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