A university student is selecting courses for his next semester. He can choose from 10 humanities courses and 7 science courses. In how many ways can he choose 9 courses if more than 6 must be humanities courses?

The answer is the first one

$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