QwQ hate math exams will mark brainliest and it’s worth 30 points <3

Answer:
About 8.6 units.
If you count up and sideways, it would be 12, but then there is some stuff we need to calculate at the end because it's not fully.
Answer:
B , 8.6
Step-by-step explanation:
5^2 + 7^2 = 74
square root of 74 is 8.6 hen rounded
I just learned about this lol its the Pythagorean theorem