exam Maths Puzzle Numerical Ability

a cd subscription offers an introductory offer of 12 cd's for 1 cent.cd's purchased there after are $15.98 each. How do I set up the equation for this problem?

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Identify the conic solution, write in standard form,graph and label all vertices and asymptotes.
4x^2+y^2+24x-4y+24=0 Uisng the equation f(x)=a(x-h)2 + k, how do you determine the direction the graph opens?