Final answer:
The total earnings for each week, assuming 20 hours of work, are as follows: a) Week 1: $180, Week 2: $200, Week 3: $250. b) Week 1: $180, Week 2: $300, Week 3: $500. c) Week 1: $210, Week 2: $300, Week 3: $600. d) Week 1: $180, Week 2: $500, Week 3: $1000.
Step-by-step explanation:
To find the total earnings for each of the weeks, we need to multiply the number of work hours (20) by the earnings per hour for each week.
a) Week 1: $180 earnings for 20 hours = $9 per hour. Week 2: $200 earnings for 20 hours = $10 per hour. Week 3: $250 earnings for 20 hours = $12.5 per hour. Therefore, the total earnings for each week are: Week 1: $180, Week 2: $200, Week 3: $250.
b) Week 1: $180 earnings for 20 hours = $9 per hour. Week 2: $300 earnings for 20 hours = $15 per hour. Week 3: $500 earnings for 20 hours = $25 per hour. Therefore, the total earnings for each week are: Week 1: $180, Week 2: $300, Week 3: $500.
c) Week 1: $210 earnings for 20 hours = $10.5 per hour. Week 2: $300 earnings for 20 hours = $15 per hour. Week 3: $600 earnings for 20 hours = $30 per hour. Therefore, the total earnings for each week are: Week 1: $210, Week 2: $300, Week 3: $600.
d) Week 1: $180 earnings for 20 hours = $9 per hour. Week 2: $500 earnings for 20 hours = $25 per hour. Week 3: $1000 earnings for 20 hours = $50 per hour. Therefore, the total earnings for each week are: Week 1: $180, Week 2: $500, Week 3: $1000.