Which number is an irrational number? -22/9 - 2.56

Ibelieve it's a. 2.2 - x = -10.85 (plz tell me if it's right : ) )

$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