Circle x is shown in the diagram.
which equation can be used to solve form 21?
m21 = 1(a - b)
m21 = (a+b)
o m_1 = {(0-0)
©m_1 = {(c+0)

m< 1=1/2(a-b) because it seems like the best answer logically

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: