Answer:
Step-by-step explanation:
This is late but the other is not an answer at all.
The 50 ft string makes an angle of 39 degrees with the ground so the stromg and balloon form a right-angle triangle to the ground.
The height of balloon from string = 50*sin(39degrees)
= 31.47 ft
As the string is held by a person 5 ft above ground, the balloon is above ground at 31.47 + 5
= 36.47 ft.
