This shows a figure containing an undoing diagram. It has three rectangular boxes in the middle, the 1st containing ‘subtract 20’ linked to the 2nd box on the right containing ‘divide by 0.4’, which is linked to the 3rd box on the right containing ‘add 300’. To the left of the 1st box is the number 45, linked by an arrow pointing right. On the right of the 3rdrectangular box is an arrow pointing right to the phrase ‘number of minutes’.