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1. which of the following ratios is equivalent to 2: 5?
a. 5: 2
b. 2: 7
c. 14: 35
d. 22: 25
2. the ratio of boys to girls in mandy's mathematics class is 3 to 12. the ratio is the same in mandy's science class, in which there are 20 girls. how many boys are there in mandy's science class?
a. 5
b. 8
c. 11
d. 15

757764

step-by-step explanation:

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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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