There aren't any answer choices so I'll try to explain it to the best of my ability.
Explanation: The United States government impacts the economy as it sets tax regulations for different areas. The government has control of the economy so that based on your location, you pay higher sales taxes. Sales Taxes go to the general fund which helps construct roads and such. Federal Taxes are taken out to be used for Social Security which literally messes up the entire economy thanks to the government's rules.
Actual Answer: All in all, the US Government and the economy work together to provide for citizens. Government has the control and that is how they affect the economy.