Solve and round (question in description)

Question

A radio active isotope decays according to the exponential decay equation where t is in days. 

 

Round to the thousandths place. 

 

For the half life: The half life is the solution (t) of the equation : a/2=ae^−2.360t

 

 

 

Answer 1

t = 5.29548

 

t = 0.5*e^2.36 = 5.29548