76. | Some possibilities are 'pace' (or 'cape') 'area' 'gale' 'bend' together with 'caged' (or 'cadge') and 'faded'. |
77. | The last digit is 5 The TOTAL is 264 - 1 and 264 = 18 446 744 073 709 551 616 |
78. | 0.2677 km 129920 mm 234.06 metres Other answers are possible by selecting the appropriate SI prefixes. |