Why are these big tech firms monopolies?

What is the social order of the ancient river valley civilization of mesopotamia?

Which of the following is not a common estate planning goal? a. maximizing transfer costs. b. minimizing transfer taxes. c. providing for liquidity at death. d. fulfilling client's healthcare decisions.

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.