I BET NO ONE KNOWS THIS How many moles of helium are in 3.5 x 10^22 atoms of helium? mol He

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 standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Find the distance between (7,-6) and (-3,-9)