Question 515007
Let {{{ t }}} = tax
She pays:
{{{ 860 - .2*860 + t }}}
{{{ .8*860 + t }}}
{{{ 688 + t }}}
give:
{{{ t = .065*688 }}}
{{{ t = 44.72 }}}
She pays:
{{{ 688 + 44.72 = 732.72 }}}
The total she pays is $732.72