Question 977584
Let {{{ n }}} = number of half hours the hall is rented
Let {{{ C }}} = cost of renting the hall
{{{ C = 85n + 50 }}}
{{{ n <= 8 }}} ( since 8 half hours = 4 hrs )
Let {{{ n = 8 }}}
{{{ C[max] = 85*8 + 50 }}}
{{{ C[max] = 680 + 50 }}}
{{{ C[max] = 730 }}}
The most that can be spent is $730