9. A gasoline engine has an annual depreciation of P13,000 for 15 years and salvage value of P20,000. Using sinking fund depreciation with 15% interest. Determine the first cost of the engine. 10. A...

Please answer items 9,10,11 and 12. Thank you.

Extracted text: 9. A gasoline engine has an annual depreciation of P13,000 for 15 years and salvage value of P20,000. Using sinking fund depreciation with 15% interest. Determine the first cost of the engine. 10. A machine costs P15,000 was old as scrap after being used for 12 years. If the scrap value was P650, determine the book value after 7years. (Use Straight Line Method) 11. An equipment has a first cost of P10,000 a salvage value of P1000 at the end of 10 years. Determine the book value after 5 years using declining balance method. 12. An asset is purchased for P7,500. It estimated life is 8 years after which it will be sold for P1500. Find the book value during the first-year sum-of -years digit (SOYD) depreciation is used.