a$.$ Received $$18,000$ from sale of common stock. If an amount box does not require an entry, leave it blank.

b$.$ Purchased equipment for $$27,000,$ paying $$10,000$ in cash and giving a note payable for the remainder. If an amount box does not require an entry, leave it blank.

c$.$ Paid $$2,300$ for rent for April. If an amount box does not require an entry, leave it blank.

d$.$ Purchased $$1,500$ of supplies on account. If an amount box does not require an entry, leave it blank.