Aproblem states: "there are 9 more children than parents in a room. there are 25 people in the room in all. how many children are there in the room? " let c represent the number of children. which expression represents the number of parents? c−9 9−c c⋅9 c + 9

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: