What economic system is the u. s. economy built upon?

Brainliestttme : ) why was the launch of sputnik in 1957 important? -most in the u.s. had not thought the soviets were capable of producing satellite technology. - it made clear that the u.s. space program was dominant. - most in the soviet union had not thought the u.s. was capable of launching manned aircraft. - it established the fact that a more dangerous hydrogen bomb could be created.

What caused the comanche kiowa raiding? a. gadsden purchase b. battle of alamo c. bear flag revolt d. settlement of texas

What is the main reason the united states removed the taliban from power shortly after the september 11 2001 attacks ?