If an instrument measures in units of 5, then any value between which two values would be measured as 35?

Step-by-step explanation:

The choices for this question are

A) 27.5 and 32.5

B) 30 and 40

C) 32.5 and 37.5

D) 34.5 and 35.5

If the instrument measures in units of 5, then, the measure must be included in an interval.

In this case, we have the measure 35. Observe that choices C and D include the measure 35. However, choice C, from 32.5 to 37.5 as a wider range of measures which can imply a bigger error margin.

On the other hand, choice D, from 34.5 to 35.5 is the best choice to measure 35, because it has a least range of measures, where 35 is in the middle of such interval.

Therefore, the right answer is D.

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

so, converting firstly the mixed fractions to improper fractions and then "adding".