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Bunuel
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interest = (principal)(rate)(time)

interest = ($200)(.10)(1)

interest = $20

200+20 = $220
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interest = (principal)(rate)(time)

interest = ($200)(10%)(1)
10% of 200 = 20

10% * 200+ 200=220
Answer is D
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Bunuel
If $200 were invested at 10% annual interest, the total value of the investment, in dollars, after a year would be

A. $202
B. $210
C. $212
D. $220
E. $222

Total value of investment after one year = 200 x 1.1 = $220

Answer D
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Bunuel
If $200 were invested at 10% annual interest, the total value of the investment, in dollars, after a year would be

A. $202
B. $210
C. $212
D. $220
E. $222

We can use the formula for simple interest:

Interest = principal x rate x time

Interest = 200 x 0.1 x 1 = 20 dollars

Thus, after 1 year, the investment will be worth 200 + 20 = 220 dollars.

Answer: D
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