The investment firm's total profit is $4,740.
In company A, Total amount invested = $11,000 and profit =24%.
In company B,Total amount invested= $14,000 and profit = 15%.
In Company A profit = 24% of $11,000
= 0.24 × 11,000
= $2,640
In Company B profit = 15% of $14,000
= 0.15 × 14,000
= $2,100
Total profit = $2,640 + $2,100
= $4,740
Hence, the investment firm's total profit is $4,740.
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