1. You have the following wage progression scale

HOUSEKEEPER

START 6 MOS 1 YEAR 2 YEARS 3 YEARS

3-1-21 9.00 9.50 10.00 10.50 11.00

3-1-22 9.50 10.00 10.50 11.00 11.50

3-1-23 10.00 10.50 11.00 11.50 12.00

LABORER

START 6 MOS 1 YEAR 2 YEARS 3 YEARS

3-1-21 9.50 10.00 10.50 11.00 11.50

3-1-22 10.00 10.50 11.00 11.50 12.00

3-1-23 10.50 11.00 11.50 ` 12.00 12.50

MAINTENANCE HELPER

START 6 MOS 1 YEAR 2 YEARS 3 YEARS

3-1-21 10.00 10.50 11.00 11.50 12.00

3-1-22 10.50 11.00 11.50 12.00 12.50

3-1-23 11.00 11.50 12.00 12.50 13.00

Employees are paid according to length of service with the company and classification on a calendar year basis without deduction for time off or proration. Joe is hired as a Housekeeper on 4-1-21 and is promoted to Laborer on 7-1-22 and to Maintenance Helper on 10-1-23. State the rate at hire and the wage changes and the dates thereof.

(Note: There may or may not be six rate changes.)