Why it takes more 1/8s than 1/4s to make a fraction equivalent to 1/2?

  1/8 is half the size of 1/4, so it takes twice as many of them

Step-by-step explanation:

Suppose you have 8 identical objects.

Half of them is 4 objects.

One-quarter of them is 2 objects. It will take 2 quarters to make half (4 objects).

One-eighth of them is 1 object. It will take 4 eighths to make half (4 objects).

answer: the dogs need to shift their focus to human scent.

its because the dogs being trained are for search and rescue thus they need to be able to track humans and their specific scent

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this