Why were americans angry with the british at the beginning of the war 1812?

Britain refused to stop seizing American ships that traded with France

They was angry with them b/c British kept taxing them without there permission which is known as the (stamp act) and British would tax them to pay of war dept which was the (French and English )

12 days because 1/4 is 25% of 100 if 100 is equal to 1 pound then multiply 3 by 4 which equals 12