HELP US PLEASE

An engineering firm purchased one heavy planer 12 years ago for Php. 54247. And the life of the planer with 23 yearsA straight line depreciation reserve has been provided on that basis with no salvage value. Now, the firm wishes to replace the old planer with a newly design planer possesinng several advantages. It can sell the old planer for Php. 12215. The new machine will cost Php. 70626. A. Solve for annual depreciation B. Solvee for total depreciation C. Solve for the capital required to buy a new planer