Caleb bought stock in a company two years ago that was worth xx dollars. During the first year that he owned the stock, it increased by 38%. During the second year the value of the stock decreased by 12%. Write an expression in terms of xx that represents the value of the stock after the two years have passed.

  1.2144xx

Step-by-step explanation:

The multiplier of value for the first year was (1 +38%) = 1.38.

The multiplier of value for the second year was (1 -12%) = 0.88.

Then the multiplier of value for the two years was ...

  1.38×0.88 = 1.2144

The value of the stock after 2 years was ...

  1.2144xx

Comment on the variable

We have used the variable given in the problem statement (xx). If you intend something different, replace xx with the variable you intend.

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