Could anyone help me explain the steps and answers for below? Thank you!

30. Merrill Corporation sold an equipment for $7,500 which cost $30,000 and accumulated depreciation of $18,000. what is the gain or loss of disposal equipment? ________________

31. Tin corporation has the following equipment on the balance sheet as of 12/31/19 and 12/31/18. What are the 2019 equipment purchase and depreciation expense?

12/31/19. 12/31/18

Equipment $120,000. $70,000

Accumulated Depreciation ($550,000). ($10,000)

1. $50,000 and $30,000
2. $70,000 and $60,000
3. $70,000 and $80,000
4. $50,000 and $40,000

34. Apple Corporation has the following accrued bonus on the balance sheet as of 12/31 and 12/31/18 the company pad bonus of $50,000 and $20,000 in January and September respectively. What is the bonus expense for the year of 2019?

12/31/2019 12/31/2018

Accrued Bonus $150,000 $90,000

a. $130,000

b. $60,000

c. $150,000

d. $70,000