Question 16 • Financial Math
The sale proceeds are $6.78x, and the $2.99 transaction fee is deducted, so the amount collected is 6.78x − 2.99. To collect at least $20,925, solve 6.78x − 2.99 ≥ 20,925, which gives x ≥ 20,927.99 ÷ 6.78 ≈ 3,086.7. Therefore, the investor must sell at least 3,086.7 shares, represented by choice B.
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