1. On Hershi's request, you decided to help her calculate which option will be less costly. Show all working and explain how you know. [7 marks] A tower, 253m tall,

will be erected as a supporting structure to the power station.Suppose that, Josie, an engineer is standing on the observation deck at the top of the tower, 147m above the ground. He drops a cable and watches it fall to the ground. The table below shows how the distance of the cable from the ground would change with time.