7: triangle similarity (, it would mean so much & you)

question 1.
a tree casts a shadow that is about 15ft. long. javier, who is about 5.5 ft. tall, is standing near the tree. javier's shadow is about 4.5 ft. long. what is the estimated height, t, of the tree? (you may want to sketch a )

question options:

9.6 ft.

12 ft.

15 ft. < (i picked this but it's wrong)

18 ft.

question 2. (first picture)
answers:

4 < (i picked this answer it was wrong)

3.5

8

14

question 3.
a landowner wants to find the distance, d, across a pond. the two overlapping right triangles shown are similar. using the measurements shown, what is d?
(picture 2)
question options:

76 meters

96 meters

124 meters

36 meters< (i picked this but it was wrong)

question 4.
a tree that is 125 feet tall casts a shadow 75 feet long. nearby, a building casts a 30-foot-long shadow. how tall is the building? (hint: draw a diagram)
(enter your answer)