Finding Initial and limiting values!?

Question

For the Function N=6.21/(0.035 + 0.45^t), use a table to find the intial value. Also determine, using a table whether there is a limiting value and if so calculate it's value.

Answer 1

For t= 0 N(0)= 6.21/(1.035)=6
For T==> +infinity 0.45^t==> 0 so the limiting value is 177.4286