At the city museum, child admission is $6.30 and adult admission is $9.50. On Friday, 158 tickets were sold for a total sales of $1222.60. How many adult tickets were sold that day?

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:

16

step-by-step explanation:

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