Hence It will take 12.88 years for the account value to reach 17600 dollars.
The perimeter of a triangle assuming that all the sides are the same, would be 3 multiplied by 28 to get 84. Since the perimeter of the square is the same, that would mean that 84 units is the total addition of the 4 sides of the square. So divide 84 by 4 to get the length of one side ( which is 24 units).
Finally, the area of a square is defined as two sides multiplied by each other, so 24 multiplied by 24.
Hope this helps.
The pen is 
centimeters long when scale is 
inches long and pen is 
shorter then the scale.
How to find the how much long is the pen ?
Scale is 
long and
We know that
And pen is shorten then the scale
So the length of the pen is
Learn more about the length of the pen here :
brainly.com/question/28048541
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