CREATE TABLE table_79523 ("Date" TEXT, "Internet Explorer" TEXT, "Firefox" TEXT, "Safari" TEXT, "Opera" TEXT)

What is the safari value with a 2.4% opera and 29.9% internet explorer?
SELECT "Safari" FROM table_79523 WHERE "Opera" = '2.4%' AND "Internet Explorer" = '29.9%'
SELECT "Safari" FROM "table_79523" WHERE "Internet Explorer" = '29.9%' AND "Opera" = '2.4%'