You are on level ground in the late afternoon. the sun is at angle of elevation of 20 degrees. a tree casts a 200 feet long shadow. the height of the tree is

11/20

Step-by-step explanation:

4/5 and 1/4 clearly dont have the same denominator so you have to make them the same, to do so you would take 4/5 and multiply the 5 by 4 getting twenty, whatever you do to the top you do to the bottom so now you multipy 4 by 4 getting 16.

now you have made 4/5 into 16/20

next, your gonna change 1/4 so to make the 4 to a 20 you multiply it by 5 next you multiply the numerator (1) by 5 getting 5/20

now, you subtract 16/20 by 5/20

so, your answer is 11/20 (you cant simplify ne ways so yuh)