Final answer:
The annual depreciation expense for the truck using the straight-line method is $0.
Step-by-step explanation:
To calculate the annual depreciation expense using the straight-line method, subtract the salvage value from the original cost of the truck and then divide it by the useful life.
Original cost of the truck = $8,000
Salvage value = $8,000
Useful life = 5 years
Depreciation expense = (Original cost - Salvage value) / Useful life
Depreciation expense = ($8,000 - $8,000) / 5 = $0 / 5 = $0
The annual depreciation expense is $0.