Allsion earns $5.25 and hour for 15 hours, so multiply 5.25 * 15 to get her total, which is $78.75.
Amy earns $3.10 an hour for 15 hours so multiply 3.10 * 15 to get her total, which is $46.50 and she gets $38 in tips so add 46.50 + 38 for her grand total of $84.50.
Since Amy earns more each day, she would earn more each week too