A bank employee has been approached by a client, Tapiwa, who wants to know how much they would earn if they take advantage of the latest bank offers. Tapiwa wants to invest 8500. The bank employee used a spreedsheet to calculate the values for the offer below. However, this spreadsheet is incomplete. Required What is his investment worth at the end of Year 8? What is the formula needed in Cell E14 to calculate the closing balance after 4 years? What is the formula needed in Cell E15 to calculate the closing balance after 9 years