Gosh, when I saw that my mind went blank
Answer:
56
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Answer:

Step-by-step explanation:
We are given that
Height of man=5 foot

Height of street light=20ft
We have to find the rate of change of the length of his shadow when he is 25 ft form the street light.
ABE and CDE are similar triangle because all right triangles are similar.







Hence, the rate of change of the length of his shadow when he is 25 ft from the street light=
you add the amount of people in each section that fits into the category. So, 11 people from 6-6:29 and 15 people from 6:30-6:59 and then 8 people from 7:30-7:59 so you get 34 people total