Answer:
cash 900,000,000 debit
common stock 50,000,000 credit
additional paid-in 850,000,000 credit
--- Jan 9th issuance ---
Equipment 81,000 debit
Common Stock 4,500 credit
Addtional paid-in 76,500 credit
--- March 11th issuance ---
Equity at end of Year 1:
common stock 50,004,500 credit
additional paid-in 850,076,500 credit
Explanation:
cash proceeds: 50 millions x 18 dolllars = 900 millions
face value: 50 millions x 1 dollars = 50 million
additional paid-in 850 millions
Equipment: 4,500 x 18 = 81,000
face value 4,500 x 1 = 4,500
addiional 76,500
Equity at year-end will be the sum of both