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7. Given a three-stage system comprised of two amplifiers and one filter with an input power of P- 0.01 mW and absolute power gains of A, = 200, A, - 0.1, and A, 1000, determine a. The input power in dBm b. Output power (P) in watts and dBm c. The dB gain of each of the three stages d. The overall gain in dB 1-9. Determine the combined power when a signal with a power level of 10 dBm is combined with a second signal with a power level of 8 dBm. 1-8. Given a three-stage system with an input power P.--26 dBmand power gains of the three stages of A, = 23 dB. A,--3 dB, A, 16 dB, determine the output power (P) in dBm and watts.