Answer:
a.
Dr. Cash 15000
Dr. Law Library (Asset) 6000
Cr. Mary (Capital Account) 21000
b.
Dr. Office equipment 7500
Cr. Account Payable 7500
c.
Dr. Cash 1500
Cr. Income / Revenue 1500
d.
Dr. Account Payable 3500
Cr. Cash 3500
e.
Dr. Account Receivable 4000
Cr. Income / Revenue 4000
f.
Dr. Marry (Capital Account) 2000
Cr. Cash 2000
g.
Dr. Cash 2500
Cr. Account Receivable (e) 2500
h.
Dr. Salary Expense 2500
Cr. Cash 2500
Explanation:
*Trial Balance and T accounts are made in an MS Excel file which is attached please find.