For y=5.5*1.2^{x}, the rate is _______ % and it is exponential _______ .
For y=10*0.4^{x}, the rate is _______ % and it is exponential _______
For y=600*0.89^{x}, the rate is _______ % and it is exponential _______
For y=989*1.75^{x}, the rate is _______ % and it is exponential _______
