1- In 2019, Tik Tak had sales equal to $490,000. Its expenses amounted to $281,000 and it paid for all expenses in cash. However, the firm was only able to collect 60% of its accounts receivable by the end of the year. Calculate net cash flow for the year.

2- In 2018, Raddit reported $532,000 in inventory. In 2019 inventory was equal to $490,000. Indicate whether the change in inventory corresponds to a source of cash or a use of cash. Explain in 1-2 sentences.

3- In 2018, Fumblr reported $605,000 in accounts payable. In 2019 accounts payable was equal to $490,000. Indicate whether the change in accounts payable corresponds to a source of cash or a use of cash. Explain in 1-2 sentences.