Answer:

Step-by-step explanation:
The given functions are:
and 
By algebraic properties of functions;

We perform the long division of the two polynomials as shown in the attachment.
Therefore:

The last choice is correct
300km because if 1cm=50km And it’s 6cm you have to do 50*6 to get C. 300km
This is true based on the theorem corresponding parts of congruent figures are congruent.
The value of h is exactly the axis of symmetry. So when h changes, it completely changes the line of symmetry. This is because the vertex is (h, k) and the x value of the vertex is always equal to the line of symmetry in a quadratic.
Changing the k value does nothing to the line of symmetry. This is because it is just moving the graph up and down, which doesn't change the symmetry of a parabola.