You but 6 bags of wild bird food to fill the feeders in your yard. oyster shell grit, a natural calcium source, sells for $4.00
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Solve both equations for y:
Set the expressions equal to each other:
So, for every nonzero number a the system of equations has one solution.
Set the expressions equal to each other:
So, for every nonzero number a the system of equations has one solution.