On May 1, 2025, the following transactions occurred:

1. Alpha Corporation purchased $40,000 of inventory on credit from Beta Suppliers.
2. Beta Suppliers granted a $6,000 discount to Alpha Corporation for early payment of the invoice from Transaction 1.
3. Gamma Enterprises paid $28,000 in cash for marketing services provided by Delta Marketing.
4. Delta Marketing provided $12,000 worth of advertising services to Epsilon Solutions on credit.
5. Epsilon Solutions returned $7,000 worth of unused marketing materials to Delta Marketing.
6. Zeta Industries sold equipment for $70,000 cash to Theta Corporation.
7. Theta Corporation paid $10,000 for consulting services provided by Iota Consulting.
8. Iota Consulting granted a $1,500 discount to Theta Corporation for prompt payment of the consulting invoice.
9. Kappa Ventures received a $25,000 loan from Lambda Bank.
10. Lambda Bank charged $2,500 as interest on the loan provided to Kappa Ventures.

Please journalize these transactions for the respective companies involved.