Answer:
hmmm sorry I wish I could help man or girl. just try your best you'll get there I promise you that.
Step-by-step explanation:
It took them 4 days to install 480 chairs which means if they were working at a constant rate they got 120 chairs installed daily. with 360 chairs left that means in 3 days they will finish. so overall, it took the workers 7 days to finish, or a week.