What are the arguments against each student’s plan?

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?

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges

Either enter an exact answer in terms of \piπ or use 3.143.14 for \piπ and enter your answer as a decimal.