Please use PostgreSQL$(14)$ Write a single query to find the name of the state that was admitted last into the union $($with the latest date in the field admitted to$\_$union$).$

$(15)$ Write a query to find the names of the counties whose names are at least $8$ characters long. Note the county name is defined to be a fixed$-$length $30$ character string, you may need to eliminate the padded whitespaces.

Output columns: name $($of the county$)$

Order by: name.

$(16)$ Write a query to find the name of the state with the minimum number of counties by first creating a temporary table using the "WITH" construct. If there are multiple such states, all should be reported $($Using the WITH Construct$).$

Output column: name $($of the state$)$