In which area do the united states' state and federal governments share power?

The correct answer is A) collecting taxes.

The area in which the United States' state and federal governments share power is "collecting taxes."

The powers that are shared by the federal and state governments in the United States are called "concurrent powers." Among the concurrent powers that are shared by the federal and states government are to collect taxes, borrow and spend money, regulate rights of property, and provide public education of quality to the citizens.

The other options of the question were B) declaring war. C) forming international treaties. D)granting titles of nobility.