Apply the distributive property to factor out the greatest common factor of 9+12n

Step-by-step explanation:

9 = 3 × 3

12n = 2 × 2 ×3 × n

Greatest common factor = 3

9+12n = 3×3 +3×4n = 3(3+4n)

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation:

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step-by-step explanation: