Answer:
assets = liabilities + equity
a) NA - $6,400 AP
+ $6,400 NP
net effect $0
b) NA + $128 interest - $128 retained
payable earnings
c) -$6,528 cash -$6,400 NP NA
-$128 interest p.
revenue - expenses = income
a) NA NA NA
b) $0 $128 -$128
c) NA NA NA