Answe questions 5-10

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?

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle