Answer:
The permission that Kevin's Google account will need to link Firebase to google Ads is "Owner Role" in firebase
Explanation:
There are three primitive roles on IAM for firebase. They are; Owner, editor and viewer.
The viewer Role is for read-only actions
The editor role has all the viewer role permissions plus permission to change state and resources
The Owner role has all editor permissions plus the permissions below;
1) Manage roles and permissions for a project and all resources within the project.
2)Set up billing for a project.
3) Delete or restore a project.
