Answer:

Step-by-step explanation:
Using the distance formula: 
substitute


The formula is 2n-5(90). If you have any questions based on finding angles for polygons, feel free to ask it and I'll answer them for you.
Answer:
see step-by-step
Step-by-step explanation:
It's not clear from your notation, so I will provide 2 answers.
3√(47x) = 24√(47)
3√(47)√x = 24√(47)
Divide both sides by √(47): 3√x = 24
Divide both sides by 3: √x = 8
Square both sides: x = 64
3√(47)x = 24√(47)
Divide both sides by √(47): 3x = 24
Divide both sides by 3: x = 8
A) A (1,-1)
b) P' (3,1)
c) Rule: (x, y) → (x + 2, y - 1)