Divide everything by 8: 550/8=68.75, 250/8=31.25. The new dimensions are 68.75 inches by 31.25 inches :)
Equilateral because all sides are equal
Answer:
The answer is "87 pounds".
Step-by-step explanation:
Please find the complete question in the attached file.
Answer:

Step-by-step explanation:
Given

Required:
Simplify
We start by opening the bracket


Collect Like Terms

Hence, the equivalent expression is 
the horizontal tangent line mean y'=0
8 - 2x = 0
x = 4