CREATE TABLE table_9040 ("Plan" TEXT, "Downstream" TEXT, "Upstream" TEXT, "Up:Down Ratio" FLOAT, "Monthly Cap" TEXT, "Price" TEXT)

What is the upstream with a 150 gb monthly cap?
SELECT "Upstream" FROM table_9040 WHERE "Monthly Cap" = '150 gb'
SELECT "Upstream" FROM "table_9040" WHERE "Monthly Cap" = '150 gb'