Before i try and answer this do u have a graph
Answer: 45
Explanation: two angles that form a Line always equal 180 degrees, so we start with the equation 180-u+47, which is the measure of the missing interior angle measure. All of the angles inside of a triangle also equal 180 degrees, so we can set up this equation to find U:
u-18+u+(180-u+47)=180
We can start to simplify by first simplifying what’s inside the parenthesis:
u-18+u+153-u=180
Then you solve the equation to get
U=45 degrees
Answer:c
Step-by-step explanation:
Answer: 0.5 inch
Step-by-step explanation:
Given
On hammering nail advances 
each time
Annalee hammered 4 times
So, total advancement of nail= 
