In the West, how many stores are there in the city whose land area is below 20,000,000?
"West" is the Region; land area is below 20,000,000 refers to Land Area < 20,000,000
SELECT SUM(CASE WHEN T1.Region = 'West' AND T2.`Land Area` < 20000000 THEN 1 ELSE 0 END) FROM Regions AS T1 INNER JOIN `Store Locations` AS T2 ON T2.StateCode = T1.StateCode