Question: What are all the vicinity (km²) where profits magnificence (2007) is 2nd
SQL: SELECT "Area (km²)" FROM "1-255812-1" WHERE "Income class (2007)" = '2nd';

Question: What are all the profits elegance (2007) in which mayor is Ma. Ester A. Hamor
SQL: SELECT "Income class (2007)" FROM "1-255812-1" WHERE "Mayor" = 'Ma. Ester A. Hamor';

Question: What is the total quantity of populace (2010) where location (km²) is 134.51
SQL: SELECT COUNT("Population (2010)") FROM "1-255812-1" WHERE "Area (km²)" = '134.51';

Question: What are all the metropolis / municipality where mayor is Helen C. De Castro
SQL: SELECT "City / Municipality" FROM "1-255812-1" WHERE "Mayor" = 'Helen C. De Castro';