Classify the Following Activities According to the Appropriate Section of the Statement

Classify the following activities according to the appropriate section of the statement of cash flows.
a.Operating activity
b.Investing activity
c.Financing activity
____ 1.Cash received from a one-time sale of used office equipment.
____ 2.Cash paid for dividends.
____ 3.Cash received from customers.
____ 4.Cash received from stockholder contributions.
____ 5.Cash paid for utilities.
____ 6.Cash paid for a delivery van to be used in the business.