I have the function A(t) with its differential equation of dA/dt= -kA

and the solution as a function: A(t)= Ao e^-kt.

I need to find the values of Ao and k in the equation A(t) before i

can continue with the rest of the question.

I think i've found the values for k but not 100% but have no idea

about Ao

i found k= 1.2092x 10^-4