question : you have the following adjusted Trial balance at 31/12/2017:

	Adjusted trial balance
Account title	Dr	Cr
A/R	20000
Supplies	1000
Equipment	37000
Accumulated depreciation		35000
AP		24000
Share capital		22000
Retained earnings		8000
Dividends	3000
Prepaid insurance	8000
Rent revenue		8000
Salaries expense	25000
Unearned service revenue		5000
Service revenue		25000
Total
Depreciation expense	25000
Supplies expense	9000
Salaries payable		5000
Insurance expense	4000
Total	132000	132000

Answer the followings

The company had supplies on hand at 1/1/2017 of 6,000. How much supplies were purchased during 2017?
Assume prepared insurance were paid 5 years ago and it is consumed equally annually. and the remaining will be expired by 31/12/2019. how much was the prepaid when first paid?
Assume the company had salaries payable of 7,000 at 1/1/2017. how much the salaries paid during 2017?
Assume that three quarters of the unearned revenues were earned during 2017, how much is the unearned revenues in the Trial balance before adjustment?
Assume depreciation expense presents annual depreciation. what is the balance of accumulated depreciation on 31.12.2018?