The answer is C. you can check the attached picture.
Answer:
-9
Step-by-step explanation:
= 
The first triangle has a perimeter of 4+6+10 = 20.
The 2nd longest side is 6/20 = 3/10 of the perimeter. In the larger triangle, the 2nd longest side will have length (3/10)*60 = 18.
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These side lengths mean the "triangle" is a line segment. That is, it has zero area.
If I'm right the principal amount is $1,000 and the interest(if $1,550) is $550 in the transaction.
