Find the area of the composite figure. use 3.14 for pi.

area for the triangle section is 1/2 x b x h: 1/2 x 16 x 10 = 80 square m

area for half circle = 1/2 x 3.14 x 8^2 = 100.48 square m

100.48 + 80 = 180.48 square meters

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: