Agirl wants to count the steps of a moving escalator which is going up if she is going up on it she count 60 steps and she is walking down taking the same time for step then she counts 90 steps how many steps would she have to take in either direction if the escalator were standing still

109 trust me

step-by-step explanation:

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: