Answer:
-2.28%
Step-by-step explanation:
we can use the future value formula:
FV = PV x (1 + r)ⁿ
$7,200 = $8,200 x (1 + r)⁷
(1 + r)⁷ = $7,000 / $8,200 = 0.853658536
⁷√(1 + r)⁷ = ⁷√0.853658536
1 + r = 0.9772
r = -0.0228 = -2.28%
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