Answer:
I recommend trying this it is real tutors that explain to you on how to do it it's free
Answer:
C. 9
Step-by-step explanation:

Hence, side length of square = 9 feet.
1: x² + 10x + 25
2: x² - x -12
3: -2x² + 10x
4: -2x² + 9x + 5
5: n² - 4
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1: x² + 14x + 49
2: x² - 14x + 49
3: 4n² - 20n + 25
4: 4n² + 20n +25
5: you just have to switch the signs
Answer:
125 its basically 25 x 5=125
Step-by-step explanation: