Workings/calculations 2.1.1
121
3
8
Х
144
27
2.1.2 -19 +(-6)-(-25)
2.1.3
5(-2+5)
[7-2(1+3)]
2.1.4 (V-27 - V8 )(5) + 25
2.1.5 73 -(-3)(-3)
2.2
Determine a number that lies exactly half way between the two given
numbers on the a number line: -2,4 and 1,7
GRAND TOTAL​

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step-by-step explanation:

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:

da freeck kinda math is this just drop out

step-by-step explanation: