Calcule: a) +1 - 6 b) -9 + 4 c)-3 + 6 d) -8 + 3 e) -9 + 11 f) +15 - 6 g) -2 + 14

a) -5

b)-5

c)3

d)-5

e)2

f)9

g)12

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:

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy