Yes, it's y= 1/2x because it's 1/2 miles (y) per x weeks
It is a quadratic equation, if it is equal to zero. It is not factor able.
He would need to sell 28 because
12.50*28=350 and 350+50=400
3 to the power of 5
you multiply 3 times 5 instead of 3 times 3 times 3 times 3 times 3
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