Multiply 7z3 (2z2 – 4z).

A. 14z5 – 28z4
B. 9z5 – 11z4
C. 14z6 – 28z4
D. –14z

b i think

step-by-step explanation:

not really sure

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:

probably .5

i can on others if necessary.

i have not got your picture clearly so see it once again