To fulfill your request, the required information is as follows:
1. Prepare the journal entries for each transaction:
a. To record the deposit of $24,000 in exchange for common stock:
Date Account Debit Credit
----------------------------------------------------------
April 1 Cash $24,000
Common Stock $24,000
b. To record the purchase of supplies on account for $2,400:
Date Account Debit Credit
----------------------------------------------------------
April 1 Supplies $2,400
Accounts Payable $2,400
c. To record the payment to the creditor on account for $1,520:
Date Account Debit Credit
----------------------------------------------------------
April 1 Accounts Payable $1,520
Cash $1,520
d. To record the earned sales commissions of $24,500 received in cash:
Date Account Debit Credit
----------------------------------------------------------
April 1 Cash $24,500
Sales Commissions Earned $24,500
e. To record the payment of rent on office and equipment for the month of $4,800:
Date Account Debit Credit
----------------------------------------------------------
April 1 Rent Expense $4,800
Cash $4,800
f. To record the payment of dividends of $8,000:
Date Account Debit Credit
----------------------------------------------------------
April 1 Dividends $8,000
Cash $8,000
g. To record the payment of automobile expenses for the month of $2,300 and miscellaneous expenses of $1,100:
Date Account Debit Credit
----------------------------------------------------------
April 1 Automobile Expenses $2,300
Miscellaneous Expenses $1,100
Cash $3,400
h. To record the payment of office salaries of $2,890:
Date Account Debit Credit
----------------------------------------------------------
April 1 Office Salaries $2,890
Cash $2,890
2. Calculate the cost of supplies used:
Cost of supplies used = Cost of supplies on hand - Cost of supplies used
Cost of supplies used = $2,400 - $810
Cost of supplies used = $1,590
These are the required journal entries and the calculation for the cost of supplies used based on the given transactions.