Provide an appropriate response.Solve the system of equations using the substitution method:3x + y = 5x = -2y
A. y = -1, x = -2
B. x = 2, y = -1
C. inconsistent; no solution
D. dependent; many solutions
Answer: B
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Solve the problem.Devise a preference schedule with three candidates in which candidate A has a plurality of the votes, but loses by the sequential runoff method.
What will be an ideal response?
Evaluate the exponential function at the specified value of x.f(x) = 2x , x = -4
A. 
B. 
C. 8
D. - 
Sketch the graph of the pair of functions. Use a dashed line for g(x).f(x) = x2 , g(x) = - 
(x + 3)2 + 4
A. 
B. 
C. 
D. 
Solve.The circumference of a circle C is directly proportional to its radius r. If the circumference of a circle whose radius is 6 feet is 12? feet, what is the circumference of a circle whose radius is 12 feet?
A. 12 + 6? feet B. 24? feet C. 24 feet D. 6? feet