book Maths Puzzle Numerical Ability

Work Problems PLEASE HELP ME?? EVEN IF YOU ONLY KNOW HOW TO START THIS. CAN SOMEONE GIVE ME ANY INFORMATION???
Jenny has bought a new condo. The closing has been set for 45 days

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book Other Question

Please help me solve this equation

6x third power-19x squared + c / 2x-5
I am not sure if you are able to show graphing, but if so I am having difficulty with this problem.
Graph:
16x^2+25y^2+64x-250y+289=0

Thanks:)