Equilateral triangle means all sides have equal length.
Perimeter
As a sum: (x-4.5)+(x-4.5)+(x-4.5)
As a product: 3 * (x-4.5)
They are equivalent because 3 times a number is just the sum of three of the number.
<span>The population is 2018 would be near 116 million.</span>
I can help you, I know i'm in middle school, but i'll still try. The answer is D)
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