The radioactive material Iodine-131 decays according to the formula 
, where t is expressed in days. To the nearest hundredth, how much Iodine-131 will be left if a sample of 325 grams decays for 15 days?
Definitions:
Crystalline Polymers
Polymers with a highly ordered molecular structure, leading to sharp melting points and often high degrees of strength and rigidity.
Thermoplastics
A type of plastic material that becomes moldable above a specific temperature and solidifies upon cooling, allowing for easy reshaping.
Isotactic
Referring to a configuration in polymers where all substituents on the polymer chain are arranged on the same side.
Atactic
Refers to polymers where the configuration of chiral centers is random.
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