The administrator at AW Computing wants to send off client welcome tasks and a welcome email to the primary contact automatically when an opportunity is closed won.
What automation tool best accomplishes this?

The administrator at Ursa Major Solar has been asked to change the Work Item and Project custom object relationship from a master-detail to a lookup.
Which scenario could prevent the administrator from fulfilling this requirement?

Ursa Major Solar recently purchased 15 new Salesforce licenses.
How many users can an administrator create at the same time on the add multiple users page?

The administrator has created new users for 10 new employees at Universal Containers. Why are these users unable to access the account object in the Salesforce org"?

Universal Containers uses a private sharing model. Account management is accomplished using teams and Accounts are owned by the sales rep. The rep reports to the regional director who then reports to the VP of sales.
When the regional director runs reports, what records would they see with the my team's account filter?