What are the advantage of having knowledge of dependancy ratio​

Toward the end of the roman empire, what caused a decrease in the use of coined money tell me now

Which powers best complete this graphic?

Should the city pass a ban on skateboarders on all public property, or are the citizens who oppose the ban right when they argue that there are benefits to having the skateboarders in public parks? plan and write a response in which you state your position and persuade readers to agree with you. support your position with reasons and examples drawn from the proposed amendment to ban skateboarding and from information in the letters to the editor, as well as from your own experience.