Below is one of the way you can combine the output of these two queries:
SELECT ROW_COUNTS, SUM(CURRENTPERM) FROM DBC.TABLESIZE,
SELECT COUNT(*) AS ROW_COUNTS FROM Employee
WHERE TABLENAME='Employee' AND DATABASENAME='Employee_Sales';
You didn't mention in which format you need the resultset.... Single row with two columns or Two rows against one column.
If you need two columns then the query mentioned by Khurram will work
And if you need the result of both queries in single column format then you can use UNION clause in between the two queries