Question 994989
Without the rewards card,
6 drinks cost:
{{{ 6*4.25 = 25.5 }}}
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With rewards card,
6 drinks cost:
{{{ 5*4.25 = 21.25 }}}
{{{ 25.5 - 21.5 = 4 }}}
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{{{ 4/25.5 = .15686 }}}
{{{ .15686*100 = 15.69 }}}
Adam saves 15.69 %