Depreciation by three methods; partial years value of $$1,350.$ The equipment was used for $1,400$ hours during Year $1,2,600$ hours in Year $2,2,300$ hours in Year $3,$ and $1,260$ hours in Year $4.$

Required: activity method, and $($c$)$ the double$-$declining$-$balance method. dollar.

a$.$ Straight$-$line method

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