What is the dpi of a scanner with the mm dimensions 280 x 95 x 40?
CREATE TABLE "typical_duplex_scanners" (
  "product" text,
  "dimensions_mm" text,
  "dpi" real,
  "pages_per_minute_color" real,
  "max_page_size" text,
  "interface" text
);
SELECT "dpi" FROM "typical_duplex_scanners" WHERE "dimensions_mm"='280 x 95 x 40';