Solve for X. Round your answer to the nearest tenth if necessary. Need help ASAP

x=19.5

Step-by-step explanation:

So-

if these two triangles are congruent which I assume they are, 4 and 6 are proportional to 13 and x.

4/13 6/x

and with this equation you cross multiply

13*6 = 78

78/ 4 = 19.5

x= 19.5

a. is correct

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: