A bag contains 50 marbles 10 which are blue 15 or red 15 or green and 10 or purple Shawna takes a marble out of the bag Records the color and returns it to the bag how many green marble should she expect after 200 trials

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:

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2