how to solve these questions in step please

Question1 Company A purchased a vehicle costing $100,000. The company expects the vehicle to be operational for 9 years at the end of which it can be sold for $10,000. Calculate the straight-line depreciation expense Question 2 Company A purchased a vehicle costing $200,000. The company expects the vehicle to be operational for 8 years at the end of which it can be sold for $20,000. Calculate the straight-line depreciation expense