Answer:
1. 7.5 hours
2. TV
3. Computer
4. All electronic usage except for the heater would decrease because summer is usually when people go outside and don't really stay indoors. While in winter, most people stay inside their houses.
Step-by-step explanation:
16-2t=t+9+4t 7=7t t=1
5
Vertical angles are congruent, so:
