Can anyone use proportion I need help

In the diagram below, tan θ = sqrt 3. what is the value of m?

With: label the vertices and all the elements needed. find x

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?