I really need help please help..

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

What kind of bond pays interest which is exempt from tax?

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?