If you look at the attached graphic, you will see that the altitude (or height) of an equilateral triangle is:
Height = side length * sq root (3) / 2
Area = side^2 * sq root (3) / 4
Sum means addition so the equation is x+5=14
To get the answer, just do 14-5 and the answer is 9
I=$52,000
R=6.75%
T=5.5 years
P=$19,305
Answer:
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