Just a short question here. I am doing an exercise where you to record transaction within a business. I checked the answers of the excersise and I noticed the following:

April 30:The company billed clients $ 2,000 for services performed during
The last half of April.

But I didn't find on the T-acconts. Is this normal? Or should it be on there?

Depends on the period the T accounts are covering, but it should be there. Dr Debtors (or Cash or Bank), Cr Revenue