coud you please solve question 2 and 3 I am a bit stuck

1 (30 points) Tiffany bought a piece of equivalent for $40,000. The equipment has a useful life of 5 years and a salvage value of $500 at the end of its useful life. Assume that the interest rate per year is 10%. (a) (6 points) Calculate the depreciation for year 4, using DDB. $3456 $3640 $3820 Question 2 8 pts (b) (8 pts) Calculate the present worth (PW) of the depreciation, using the DDB depreciation $29455 $30920 $32115 $34180Question 3 8 pts (c) (8 pts) Calculate the present worth of the depreciation, using the straight line depreciation. $27,430 $28 570 $29,950 $31 880 Question 4 8 pts (d) (8 pts) Calculate the present worth of the depreciation, using the SOYD depreciation $28,640 $29,890 $31.840 $32,780