Heather bought 9 video on sale for $126. at the regular price,she would have spent $171. How much did heather save per video at
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Circumference = 
When you plug that in you should have
Solve that and you have your answer(: I would recommend rounding to the nearest hundreth
When you plug that in you should have
Solve that and you have your answer(: I would recommend rounding to the nearest hundreth
No solution for the quadratic equation because of the √-20
