Question 656916
Let {{{ h }}} = total hours parked at the airport
given:
{{{ 49.5 = 7 + 2.5*( h - 1 ) }}}
{{{ 49.5 = 7 + 2.5h - 2.5 }}}
{{{ 2.5h = 49.5 - 7 + 2.5 }}}
{{{ 2.5h = 45 }}}
{{{ h = 18 }}}
18 = total hours parked at the airport