The answer is 5x-59
To get this answer you have to follow pemdas and remember you can’t add variables to non variables, so you just expand the equation
As an example
5x + 6 -2x +7
You would get
13-3x
1/100
Each meter is 100 centimeter
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 
Answer:
13.) 257.08
14.) 33.57
Step-by-step explanation:
Assume you mean the perimeter.
The circumference is 2
r, then just add the extra measurements