find A, B and k from equation S(t)= A+Be^-kt?

find A, B and k

S(t)= A+Be^-kt

1. on the day the kettle is released, that is, at t=0, the annual sales of the kettle is zero
2. After one year, that is, t=1, the annual sales of the kettle is 3935
3. After a number of years (unknown), there would be annual sales of 10000 kettles

if approach t to infinity, A= 10000
but am not sure
and about the rest

thx