Required information

Problem $9-1($Algo$)$

$[$The following information applies to the questions displayed below.$]$

The following are the car repair shop data:

$\backslash$table$[[$Ticket No$.,$Work,Ticket No$.,$Work,Ticket No$,$Work$],[1,$Lube & oil,$11,$Lube & oil,$21.,$Lube & oil$],[2,$Lube & oil,$12,$Tires,$22,$Brakes$],[3,$Lube & oil,$13,$Tires,$23,$Transmission$],[4,$Tires,$14,$Lube & oil,$24,$Tires$],[5,$Tires,$15,$Lube & oil,$25,$Brakes$],[6,$Brakes,$16,$Lube & oil,$26,$Lube & oil$],[7,$Brakes,$17,$Lube & oil,$27,$Brakes$],[8,$Tires,$18,$Lube & oil,$28,$Lube & oil$],[9,$Lube & oil,$19,$Battery,$29,$Brakes$],[10,$Battery,$20,$Lube & oil,$30,$Tires$]]$