a relay race cover 3/5 km, and there are 4 runner in each team. if all the runner cover equal distance, then shade the distance covered by each runner and express it in km

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?

Which equation expression the relationship between the number of boxes b and the number of cans c and the proportion is 48

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.