The total number of inches r(t) of rain during a storm of length t hours can be approximated by r(t) = at t + b , where a and b are positive constants that depend on the geographical locale. (a) discuss the variation of r(t) as t → ∞.

Which best describes a central bank's primary goals? limiting inflation and reducing unemployment reducing unemployment and maintaining cash flow controlling stagflation and reducing unemployment managing credit and ensuring the money supply's liquidity