Alarge concrete water pipe is being laid underground. the pipe has a diameter of 24 inches and is laid in 40 foot sections. how many cubic feet of water does each section hold? express your answer in terms of pi. show all calculations.

Situation: . find the substance's half-life, in days. round your answer to the nearest tenth. a 11 gram sample of a substance that's used to treat thyroid disorders has a k. value of 0.1247. enter the correct answer n - noekt done no - initial mass (at time t = 0) n - mass at timet k a positive constant that depends on the substance itself and on the units used to measure time t= time, in days