I need help with the two questions below please because i just don't understand it !!!1 Questions 1. A signal processing system consists of a preamplifier, an amplifier and a filter connected in series. At a given frequency the preamplifier and the amplifier have gains of 12 dB and 31 dB respectively, while the input and output voltages of the filter are 7.0 v and 0.35v respectively. Calculate the overall gain of the system at that frequency. 2. A rock band produces music with a bandwidth from 30Hz to 20kHz. If the music is amplified through a system with the following bandwidths what range of frequencies will be heard by the audience. Microphones (10Hz to 12khz), Amplifiers (45Hz to 16kHz), Loudspeakers (50Hz to 14kHz). Thanks !!!!