How can a developer check the test coverage of active Process Builder and Flows deploying them in a Changing Set?

Which three statements are true regarding custom exceptions in Apex? (Choose three.)

Which statement generates a list of Leads and Contacts that have a field with the phrase 'ACME'?

Refer to the following Apex code:

What is the value of x when it is written to the debug log?

A developer created these three Rollup Summary fields in the custom object, project_ c:

The developer is asked to create a new field that shows the ratio between rejected and approved timesheets for a given project.
Which should the developer use to implement the business requirement in order to minimize maintenance overhead?