Use Gaussian elimination in a matrix to solve the system of linear equations Here: x – 2y +3z = 9
-x + 3y +z = - 2
2x -5y +5z = 17

$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

Most of them do but everyone doesn’t get exactly the same questions on every quiz so there will also be questions you’ve never had. you can find a lot online though like on quizlet and on here.