Answer: 
Step-by-step explanation:
Given
The height of hill is 120 ft and the angle of elevation is 
Suppose the length of the road is 
From the figure, we can write

Thus, the length of the road is 
Are you solving for x or y
y= 24x x= y/24
Hey there! You have to use PEMDAS.
Doing so will get you the answer choice of B
Answer:
30
Step-by-step explanation:
triangle ABC is proportional to triangle BCD so
hypothenuse of ABC/ ajdacent of ABC = hypotrnus BCD/ ajdacent of BCD
in short
AC/BC = BC/DC
10/x = x/3
10 . 3 = x²
x² = 30
x = √30
so the question mark is 30
86 + 86 x 5 = 516
18 + 18 x 5 = 108
516 + 108 = 624