Question is 100 points the question is in the pic

For number 5: 180 -139 = x

For number 6: x = 41

For number 7: x + 18 = 90 (not 100% sure)

For number 8: x = 72

For number 9: you could write an equation about an acute angle and divide it into 2 parts the have one side 3 + 8 and have the other x. Then you could go from there. I’m sorry if you can’t figure out number 9. I tried to think of something.

Step-by-step explanation:

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