Four years ago, Tasha bought a car for $28,000. Since then, the car has decreased in value by $2,400 each year. What is the percent of change in the value of the car from when Tasha purchased it to now? Round to the nearest tenth of a percent. A. 34.3% B. 52.1% C. 47.8% D. 65.8%

d

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:

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step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

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factorizing, we get that:

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then, the solutions are: or

nothing extraneous has been found!