Respuesta :

Answer:

D f(t) = 2200(.968)^t

Step-by-step explanation:

The initial value is 2200  and it decreases at 3.2%

the formula is

y =ab^x

where a is the initial value

b is  1 - the percent decrease in decimal form

x is the time

y = 2200 (1-.032)^x

y = 2200(.968)^x

Changing x to t

f(t) = 2200(.968)^t