An n-p-n transistor in a common-emitter mode is used as a simple voltage amplifier with a collector current of 4 mA. The positive terminal of a 8 V battery is connected to the collector through a load resistance RL and to the base through a resistance RB. The collector-emitter voltage VCE=4 V, the base-emitter voltage VBE=0.6 V and the current amplification factor β=100. Calculate the values of RL and RB.