how long did the american revolution last?

almost five years

almost eight years

just over nine years

exactly eleven years

almost eight years

Explanation:

Though preceded by years of unrest and periodic violence, the Revolutionary War began in earnest on April 19, 1775 with the battles of Lexington and Concord. The conflict lasted a total of seven years, with the major American victory at Yorktown, VA in 1781 marking the end of hostilities.

answer: to communicate with people on the other side.

explanation:

just finished this it is b. centrifugal force