Respuesta :

Answer:

f(x) = 20(3/5)^x

Step-by-step explanation:

When x = 1, f(x) = 12

f(x) = 20(3/5)^1

= 20 * 3/5

= 60/5

= 12.

so f(x) = 20(3/5)^x is the answer.

Answer:

F(x)=20(2/5)^x

Step-by-step explanation: