Answer:
I believe the answer is 7 years
credibility of the source usually means that you need to give credit to The Source by saying when it was published, where it was published or even by saying who wrote the source you are using. Hope I helped!
The use of bartering to trade goods, instead of money
Missouri and Maine were the 2 new states.... Maine became a free state, and Missouri became a slave state.... the Compromise of 1820 is also known as the Missouri Compromise
go to quizlet they have smth similar to your question
