5 16 degrees -436 degrees = 80 degrees.
A: Power consumption is 80 degrees.
0.5 yuan × 80 = 40 yuan
Answer; Electricity bill, 40 yuan.
40 yuan × 12 = 480 yuan
Answer: The whole year is about 480 yuan (because the electricity consumption varies from month to month, it is only a rough figure).
Good luck, goodbye.