Step-by-step explanation:
Date Assets = Liabilities + Stockholder's Equity
January 1 No effect No effect No effect
January 2 Cash $28,000 Note payable $22,000
Equipment -$6,000
January 3 Cash $1,400
Equipment -$1,400
January 5 Cash $2,300
Equipment -$2,300
July 1 Cash $23,100 Note payable -$22,000 Interest expense $1,100
( July 1 cash = balance due + interest
= $22,000 + ($22,000*10%*6/12)
= $23,100 )