How do you do this multiplication fraction 5×5 5/9

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?

Which of the following graphs represents the function f(x) = 2^x

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class