Can someone plz help me with this one problem plz

When y’all answer can y’all explain too !

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?

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?