Answer: 14ft
Step-by-step explanation: 12*5 = 60, 840/60 = 14ft
The equation
equals to 
Step-by-step explanation:
We need to solve the equation:

Solving:
Adding 9 on both sides

Applying absolute rule: |u| < a and a > 0 then, -a < u < a
So, 
Now we have,
m-8>-9 and m-8 <9
m>-9+8 and m <9+8
m>-1 and m<17
Combining the intervals:
-1 < m < 17
So the equation
equals to 
Keywords: Inequality, Absolute rule
Learn more about inequality at:
#learnwithBrainly
Answer:
x=-3
Step-by-step explanation:
This is a vertical line, vertical lines have a slope of undefined
They are of the form
x = something
In this case x= -3
D, 8 to 12
A, B, and C are all equivalent.