Select "growth" or "decay" to classify each function.
(choices in picture)

Function 1) Growth
As t increases, y grows. y begins to grow much more quickly after t=12

Function 2) Growth
As t increase, y grows very quickly. 

Function 3) Decay
As t increases, y begins to fall, approaching 0 as t approaches infinite. Remember that 0.99 to the power of a large number will approach zero, since the base is less than 1. 

That is right sorry i was gonna answer but i already saw his