Solve the following system of equations.

y=x^2 -6 and 8x+y=-18Thank you for answering this

if 1 notebook= 4 pencils, 1 pencil+1 notebook = 28?

if 1 notebook= 4 pencils, 1 pencil+1 notebook = 28?how much is each pencil worth and how much is the notebook worth

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