Let Ro be the number of vinyl records sold by a record company years after 1950, Match each equation to the statement it models.
|(91,299) = 11
(8) = 68,594
f(38,720) = 2
K(161,743) = 17)
((11) = 91.299
(68,594) = 8
|(17) = 161,743
(2) = 38,720
>
91,299 vinyl records were sold in 1961.
161,743 vinyl records were sold in 1967
>
68,594 vinyl records were sold in 1958.
38,720 vinyl records were sold in 1952

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a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

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