There are 12 inches in 1 foot and 5280 feet in 1 mi Elena ran 2.5 miles how many inches is that

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?

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?