Answer
(A) Depreciation FY 2017 - straight line
(80,000-8000)/8 = 9,000.00
(B)Depreciation FY 2017 - straight line - Acquired on 1-Sep-2017
((80,000-8000)/8) * 4/12 = 3,000
Work Step by Step
4 months from 1st Sep 2017 leading to 4/12 used in part B above