Question 660761
Let {{{ b }}} = the bill for the year minus the deductible
$750 is more than $500, so Jen must have paid the
$500 deductible. Her share of the rest of the bill is 
20%, so {{{ 750 - 500 = .2b }}}
{{{ 250 = .2b }}}
{{{ b = 1250 }}}
{{{ .8*1250 = 1000 }}}
The insurance company's share is $1,000