Greg sets his watch for the correct time on wednesday exactly one week later he finds that his watch has lost 31/2 minutes if his watch continues to lose time at the same rate what will be the overall change in time after 8 weeks

After one week, Greg's watch has lost 3.5 minutes. If the watch continues to lose time at the same rate, we can say that the change in time is 3.5 minutes per week. Based on this rate, we can find the overall change in time after 8 weeks.
       
(3.5 minutes/week) x (8 weeks) = 28 minutes
       
The overall change in time after 8 weeks will be 28 minutes.