SELECT COUNT("Points") FROM table_68926 WHERE "Entrant" = 'martini racing' AND "Engine" = 'alfa romeo flat-12' AND "Chassis" = 'brabham bt45' AND "Year" = '1976'
How many points does an entrant of Martini Racing, the engine of an Alfa Romeo flat-12 a chassis of brabham bt45, and the year 1976 have?
CREATE TABLE table_68926 (
    "Year" real,
    "Entrant" text,
    "Chassis" text,
    "Engine" text,
    "Points" real
)