5% of the number is 23 1%of the same number is 4.6 work out 16% of the number

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?

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units