There are 31 fish in a tank. The fish are either orange or red. there are 17 more orange fish. How many fish are orange? How many fish are red? Define the variables, write and solve the system of linear equations.

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:

i think the amount would be $140.62