Solve for the following variable: y = mx b, solve for x

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

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?

For how answer my question this will be the last question can you answer in math subject