A will states that 4/5 of an estate is to be divided among relatives. Of the remaining estate 1/4 goes to american cancer society. what fraction of the estate goes to the american cancer society?

These are the multiples of 15 but what you are probably asking or what are the factors of 15

$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