The mean weight of four pieces of luggage is 76 pounds. if three of the pieces have weights of 72, 60, and 82 pounds, then what does the fourth piece of luggage weigh?

Guys i really need or i have to stay late up night

Can someone me out here and the tell me the greatest common factor

It is saturday morning and jeremy has discovered he has a leak coming from the water heater in his attic. since plumbers charge extra to come out on the weekends, jeremy is planning to use buckets to catch the dripping water. he places a bucket under the drip and steps outside to walk the dog. in half an hour the bucket is 1/5 of the way full. what is the rate at which the water is leaking per hour?