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Maths Puzzle
Numerical Ability
Simplify: -√[121] + (-1)^3
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I need help with graphing the system of eauations and stating the solutions.
x+2y=3
-7x+3y=-21
Word problem:
Two identical pens for dogs are to be enclosed with a total of 161 feet of fence. If the length of each pen is to be 3 feet less than twice it's width, find the di