When Henry and Anne clean houses together, they can clean a house in 8 hours. When Henry works alone, he can clean a
house in 12 fewer hours than if Anne works alone. How long
will it take Henry to clean a house by himself?

Ithink the answer is: it is likely.

$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