Answer:

Step-by-step explanation:
Notice that A, B, and C constitute the vertices of a right angle triangle, with the right angle at the vertex A.
If we count the number of squares separating B and A (one of the legs of the right angle triangle) we find 8 units.
If we count the number of squares separating C from A (the other leg of the right angle triangle), we get: 3 units.
Then, we apply the Pythagorean theorem to find that length of the triangle's hypotenuse which is the segment BC:

Answer:
P'(4, 9)
Step-by-step explanation:
Add the translation vector to the point:
P' = P +(6, 5) = (-2, 4) +(6, 5) = (-2+6, 4+5)
P' = (4, 9)
7.8 x 10^7
I don’t know how to explain it but it’s right