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The gorgeous gown shop had a no tax added sale of dresses. Ginny was so excited that she bought n dresses at $n each, paying for them with several $20 bills. The change she recived back was less than $10. How much change did she receive?

 Feb 25, 2019
 #1
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40 dollars and n= 6    would get her 4 dollars back    IF  two 20s is considered 'several'

otherwise:

60 wont work    80  100  120  140 160  180   won't work  but:

 

$200 - n^2

200 - 14^2 = 4 dollars    is the the next one I find that would work.....

 Feb 25, 2019

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