Sophia invests $12,350 in an account that earns 4.5% annual simple interest. assuming she makes no additional deposits or withdrawals, how much interest will sophia earn after 36 months?
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$1667.25

Step-by-step explanation:

The formula for simple interest is

I = Prt

Data:

P = $12 350

r = 4.5 %

t = 36 mo

Calculations:

(a) Convert months to years

t = 36 mo × (1 yr/12 mo) = 3 yr

(b) Calculate the interest

I = 12 350 x 0.0450 × 3 = $1667.25

Sophia will earn $1667.25 after three years at 4.5 % annual simple interest.

$9.41

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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