Some amount of billiard balls were arranged in an equilateral triangle. And three balls were extra. When the same set of billiard balls were arranged into triangle in which each side has one more ball than in the first arrangement there were four billiard balls shortage. How many balls were in the set?

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?

How can (square root of 25) ^2 be rewritten?

Two cities a and b are 1400km apart and lie on the same n-s line. the latitude of city a is 23 degrees. what is the latitude of city b. the radius of the earth is approximately 6400km.