Detsheriadini by three methods; partial ypars equigment was used for 1,500 tours during Year 1, 2,800 hours in Yeor 2, 2,400 bourt is Year 3, and 1,4co hours in Year 4. Required: the double-diecining balsice method. a. Stanghe line wethod b. Unitseot-aztivey metnod b. Unke of activity twethod C. Dowble-dediaine hatance method