What is meant by the term “Smart Grid” using appropriate diagrams? What advantages doe this system give over a distributed generation?

Can you please help mw with this question please? Thank you so much!

The Code provides rules for the minimum number of receptacle outlets required in a dwelling unit. The minimum required receptacle outlets shall be in addition to receptacle outlets that are [Fill-in-the-blank]. Select one: a. all of these b. controlled by a wall switch for use as required illumination. c. part of a luminaire or appliance. d. located more than 5-1/2 ft above the floor.

please show me how to solve this.

I don't understand this practice problem.

How is electric power distributed from power plants to homes and businesses?

Explain and show how did would be set up.

Please do not send this question to any other subject. As i am not able to get an answer from Engineering branches that is why I posted the question here.

Calculate the number of kilowatt-hours (kW-hrs) consumed in a week by two 13-Watt LED light bulbs that are turned on for three hours per day.

Please help me with the concept of how to work this practice problem out. Thank you