Question

..

Answer 1

@misty1212
@Michele_Laino

Answer 2

i believe its B..

Answer 3

hint:
initial value, is the value which the function gives, when I replace \(t=0\)
the devreasing rate \(r\), is given by the subsequent formula:

\(\huge r=B-1\)

if the function is:

\(\huge y=A \cdot B^t\)