How many values for earpads correspond to the headphone class Prestige and a US MSRP of $79?
CREATE TABLE table_20475 (
    "Headphone Model" text,
    "Headphone Class" text,
    "Driver-matched dB" text,
    "Construction" text,
    "Earpads" text,
    "Termination" text,
    "US MSRP" text
)
SELECT COUNT("Earpads") FROM table_20475 WHERE "Headphone Class" = 'Prestige' AND "US MSRP" = '$79'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many values for earpads correspond to the headphone class Prestige and a US MSRP of $79? ### Input: CREATE TABLE table_20475 (
    "Headphone Model" text,
    "Headphone Class" text,
    "Driver-matched dB" text,
    "Construction" text,
    "Earpads" text,
    "Termination" text,
    "US MSRP" text
) ### Response: SELECT COUNT("Earpads") FROM table_20475 WHERE "Headphone Class" = 'Prestige' AND "US MSRP" = '$79'