Shelby drew a map of the Appalachian Trail. The scale was 5 centimeters represents 400 kilometers. The map shows the Appalachian Trail to be 43.65 centimeters. What is the actual length of the Appalachian Trail?

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12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coup?