The shape below are similar quadrilaterals which proportion must be true

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?

∆red ≅ ∆ by rule will give brainiest if possible

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)