The half-life of palladium-100 is 4 days. After 20 days a sample has been reduced to a mass of 0.375 g.(a) What was the initial mass of the sample?(b) Find a function that models the mass remaining after t days.(c) What is the mass after 3 days?(d) After how many days will only 0.15 g remain?

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Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.