Real simple, a boat traveled 112 miles downstream and back. the trip downstream took 4 hours. the trip back took 8 hours. what is the speed of the boat in still water? what is the speed of the current? an explanation how would be much appreciated.

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.

If g^-1(x) is the inverse of g (x) which statement must be true

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