The value is 6 hundreths
it is in the hundreths place, so that would be your answer
:)
I got 2 over 1/4 but i'm not sure if mine is correct.
16 because the factor of 16 are 1,2,4,8,16
Notice that 45 hours is 3 times the half-life of 15 hours.
After the first 15 hours, 450 g decays to half this amount, 225 g.
After the next 15 (total 30), 225 g decays to 112.5 g.
After the next 15 (total 45), 112.5 g decays to 56.25 g.
The answer is fifteen and one for the ratio
