The graph models the decay of a sample of iodine-125, where x is the time that has passed and y is the amount remaining in the sample in grams. what was the size of the sample at the beginning of the experiment?
(points on the graph)> > > (0,50) (60,25) (120,12.5)
(answer choices)> > >
a: 12.5 grams
b: 25 grams
c: 50 grams
d: 120 grams
and you

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