The width y of a rectangle with a fixed area varies inversely with its length ,x. The width is 4 inches when the length is 18 inches find the width when the length is 40 inches. A. 0.56 inches B. 10.08 inches C.1.8 inches D. 8.9 inches

the answer is c)8

step-by-step explanaction:

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:

the answer would be c:   ax + b = ax + c

step-by-step explanation: