9. The December 31, 2019 Income Statement of Jackson Industries is shown below. Jackson began 2019 with an inventory T-account debit balance of $300 million. Inventory purchases during the year amounted to $150 million. There were no inventory-related write-downs or losses. What is its December 31 , 2019 inventory account balance? $245 million $355 million $450 million $545 million