Use the formula of a distance between two points:


A^2 + b^2 = c^2
7^2 + 4^2 = 65
square root of 65 is 8.06
answer: 8.06
If I read the problem correctly, the answer should be D) 5.
The picture was blurry so I hope I read it right.
I hope this is correct and that it helps✨❤️