Solve the problem.For f(x) = x2 + 4x, find all values of a for which f(a) = 60.
A. 10, -6
B. 10, 6
C. -10, 1
D. -10, 6
Answer: D
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Sketch the surface z = f(x,y).f(x, y) = 3 - x2
A. 
B. 
C. 
D. 
Provide an appropriate response.A major advantage to using an escrow account is:
A. all of these apply to escrow B. it assures the lending agency that property taxes and insurance will be paid in a timely fashion C. the borrower is not required to include an amount for property taxes and insurance each month with their mortgage payment D. the monthly mortgage payment will be reduced by the tax and insurance payment
Solve and graph the solution set.- 4x - 
< - 
A. 
or 
B. 
or 
C. 
or 
D. 
or 
Solve the system using Gauss-Jordan elimination. If the system has infinitely many solutions, show a general solution (in terms of z).
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Please enter your answer in the form x = , y = , z.
What will be an ideal response?