Answer:
a. Cash receipts from customers.
Statement of cash flows: Operating activity
b. Issuance of common stock for cash
Statement of cash flows: Financing activity
c. Payment of cash dividends
Statement of cash flows: Financing activity
d. Cash purchase of equipment
Statement of cash flows: Investing Activities
e. Cash payments to suppliers
Statement of cash flows: Operating activities
f. Sale of old machine for cash
Statement of cash flows: Investing Activities