Answer:
The correct option is B)
.
Step-by-step explanation:
Consider the provided information.
Angle A C B is 90 degrees and angle A B C is 35 degrees.
The required figure is shown below:
We need to find the value of c.
Use the trigonometric function: 


Hence, the correct option is B)
.
For this problem, here’s how you do it.
Answer: $15,000
As $35,000-$20,000=$15,000.
That's basically the profit he had made, or the return on his investment (ROI).
As he already had $20,000, he had "only" made $15,000.