Accounting homework

1-LMN company purchased a new equipment for 30,000RS less a 2,000RS discount.  LMN paid 3,000RS for transportation and 5,000RS for installation of the equipment.  Calculate the acquisition cost: 

2-Alnaser Company purchased a new Bus for ( $ 53,000 ) is only expected to be useful for ( 4 years ) with Residual value ($ 3000 ) . Calculate the depreciation expenses associated with this Bus:

3-Almajed Company purchased a Machine for ( $ 58,000) is only expected to be Useful for( 5 years) with Residual value ( $2000) . Calculate the depreciation           expenses associated with this Machine: