Can I please get help on this?

Empty box + box + empty box fill in the box is equal to 30 how

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

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?