Me, it's either one of the answers below

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?

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?