BJT vs FET

What are the voltage gain, input resistance, andoutput resistance of the amplifier as shownif R1 = 12 k and R2 = 120 k ? (b) Repeat forR1 = 160 k and R2 = 330 k ? (c) Repeat forR1 = 4.3 k and R2 = 270 k ?

H.W1: An iron-constantan thermocouple, according to tables, gives an e.m.f. of 0 mV at 0 °C, 5.628 mV at 100 °C and 21.846 mV at 400°C. It is to be used to measure temperatures in the range 0 to 400°C. What will be the non-linearity error, as a percentage of the full-scale output, at 100°C if a linear relationship is assumed over the full range?