$ 10,000 gain from sale of investment shown in the statement of cash flows using the indirect method as

a. $10,000 inflow in the operating activities

b. $10,000 outflow in the operating activities

c. $10,000 inflow in the investing activities

d. $10,000 outflow in the investing activities

if net sales is $ 500,000 and the beginning balance of the net receivables is $50,000 and ending balance is $ 75,000. the cash receipt from customers is

a. 525,000

b. 500,000

c. 475,000

d. 550,000

Please please, I don't have enough time, help me