3. Abeeha is standing with a tree directly between her and a building. She stands so that, in her eyes, the top of the tree appears to "touch" the top of the building. If the distance between her and the
tree is 30 ft, the distance between the tree and the building is 15 ft, and the tree is 20 ft tall, how tall
is the building? (You may ignore her height.)
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i believe the answer is d.

hope it you! : d

(-5,-28)

i graphed to on desmos.

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

step-by-step explanation:

yes it represnts a functio, their are not 2 of the same numbers on the both sides