The following trial balance before adjustment for the year ended April was extracted from the ledgers of Juro Co:

Trial Balance as at 30 April 2021
	Debit, $	Credit, $
Cash	6,230
Accounts Receivable	2,820
Prepaid Insurance	300
Office Supplies on Hand	240
Office Equipment	3,500
Accumulated depreciation: Office Equip.		640
Accounts Payable		1,100
Unearned Revenue		480
Capital		7,720
Service Revenue		15,800
Salaries & Related Expense	12,050
Rent and Utilities Expense	600
	25,740	25,740

After conducting an analysis of the firm’s records, the following were noted:
i	Annual depreciation charge for office equipment amounting to $640 has not been recorded.
ii	The office supplies on hand as determined by a physical count is $50 at 30 April 2021.
iii	The unexpired insurance policies amount to $200 at 30 April 2021.
iv	The firm operates a five day pay week (Monday to Friday). Salaries are paid weekly on the Monday following the week of work. The payroll for the week ended 28 April is $320.
v	Revenues earned for services performed but billed in May 2021was $250.
vi	Revenues earned for services that were paid in advance was $310.

Required:
(a)	Prepare the general journal entries for the above adjustments for the year ended 30 April 2021. (Narrations not required)

(b)	Do all above adjusting entries affect the net profit or net loss of the period? In your answer include an explanation of the meaning of ‘adjusting entries’.