Which developer tool can be used to create a data model? (Choose two.)

You have created a workflow rule to send an e-mail in your configuration sandbox.
For some reason it's not working, what should you double check? (Choose two.)

A manager wants to calculate the number of days since an account was last contacted through email. Which field type should be used to accomplish this?

Sales rep at universal containers use salesforce on their mobile devices. They want a way to add new contacts quickly and then follow up later to complete the additional information necessary. What mobile should an app builder recommend?

Universal Containers manages internal projects by department using a customobject called projects. Only employees in the project's respective departmentshould have view access to all of the department's project records. If an employeechanges job roles and moves to another department, the employee should nolonger have access to the projects within their former department. How can theserequirements be met assuming the organization wide default for projects is set to private? (Choose 2)