Happy Halloween peeps

Case # 51173878 weighs 814 pounds; case # 51173981 weighs 803 pounds; case # 51174058 weighs 817 pounds; case 51174178 weighs 815 pounds; case # 51174248 weighs 817 pounds; case # 51174495 weighs 781 pounds; case # 51174577 weighs 828 pounds. what are the case #'s of the two cases that weigh the same amount?

Tim earns $9.20 per hour when he works at the college library how much money does he earn by working at the library for 4.5 hours

If there's any college students out there can you tell me if algebra is really important in college