A student factors a^6 - 64 to (a^2-4)(a^4 + 4a^2+ 16). Which statement about (a^2 - 4)(a^4 + 4a^2 + 16) is correct?

$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