Answer and Explanation:
The journal entries are shown below
On Sept 1
Supplies Dr $1,020
To Cash $1,020
(being supplies purchased in cash)
On Sept 5
Dividend Dr $410
To cash $410
(being cash dividend is paid)
On Sept 7
cash Dr 5,500
To Unearned service revenue $5,500
(being cash collection is recorded)
On Sept 16
Cash Dr $770
To Account receivable $770
(being cash collection is recorded)
On Sept 22
Equipment Dr $3,000
To cash $1,100
To Note payable $1,900
(being equipment purchased is recorded)