Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_7720 ( "Basin" text, "Outlet" text, "Total Area" text, "In-State Area" text, "% In-State" text )

### Question ###
What is the total area of the Arkansas River outlet with a % in-state of a021 100%?

### Accurate SQL ###

SELECT "Total Area" FROM table_7720 WHERE "Outlet" = 'arkansas river' AND "% In-State" = 'a021 100%'