Split 3kg 600g into the ratio 1: 2: 3

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

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 is correct interpretation of the expression -4+13