1. The problem statement, all variables and given/known data for T=e^(-kt) explain what k as a percentage indicates. 2. Relevant information T=temperature in degrees t=time in minutes 3. The attempt at a solution i really dont know, i was thinking something like the percentage of rate of decay and i fiddled around with the a f(t+1) - f(t) and then taking that away from f(t+2) - f(t+1) etc and dividing them and such but i still dont know what k indicates. please help.