An electrician drives 4 miles round trip each day to his job. he can travel 300 miles before he needs to refill his car. he has already driven 100 miles. which inequality gives the number of days, d, he can drives to work before he needs to refill his car?

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?