I am confused on how to solve this using L'hopital's
lim→0 (5^x - 3^x)/x

The answer is (a) 12-2(-1)(6)2(6)=12

$250 deductible means jane must pay the first $250 of her bill. so the insurance company paid = (80% of bill) - deductible = (0.8 x $2550) - $250 = $2040 - $250 = $1790 and jane's cost is = (bill) - (insurance payment) = $2550 - $1790 = $760