Cloud Kicks has five years of sales data and would like to track when customers made their first purchase. How should an app builder use a roll-up summary to meet the requirements?

The VP of Sales wants a Chatter post to the All Sales private group when an Opportunity goes to the closed won stage.
What two tools should the app builder use to automate this process?
Choose 2 answers

Cloud Kicks received a new requirement to calculate summaries from child objects of a standard object. The team would prefer to solve this declaratively.
What are two considerations an app builder should evaluate?
Choose 2 answers

Cloud Kicks is redefining its entire business process to convert the Manager Notes field from a long text area field. The goal is to encourage managers to be more concise in their comments and stay at 255 characters or less. There is preexisting information in the Manager Notes field that often is well beyond the character limit.
What would happen to any existing information if the app builder tries to convert a preexisting long text area field to text area?

Which report types may be used with Analytic Snapshots?(2)