How is adding and subtracting decimals similar to adding and subtracting whole numbers

It is similar because with adding and subtracting with whole numbers because you could literally just add a decimal to the whole number. For instance if I'm adding 2 plus 3 it could also be expressed as 2.0 plus 3.0 which would have given you the same answer but just with a .0 at the end of it.

  q

step-by-step explanation:

each line from a vertex to the midpoint of the opposite side is called a median. the point where the medians intersect, point q, is the centroid.

the centroid of δabc is point q.

the answer is (4,3)

since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.