Question 724362
The purchase price includes the tax, so
$161 = pre-tax price + tax
Let {{{ x }}} = the pre-tax price
{{{ x + .05x = 161 }}}
{{{ 1.05x = 161 }}}
{{{ x = 161/1.05 }}}
{{{ x = 153.333 }}}
{{{ .05x = .05*153.333 }}}
{{{ .05x = 7.67 }}}
The tax is $7.67