Answer:
64°
Step-by-step explanation:
       When angles are complementary, they can be added together to equal 90°.
90° - 26° = 64°
            The measure of angle A is 64°.
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Given a ΔLMN.
Line LN is extended to point O.
such that:

 and
 and

To find:

Solution:
Kindly refer to the attached image for the given triangle and dimensions of angles.
Let us recall the external angle property of a triangle:
The external angle of a triangle is equal to the sum of two opposite internal angles.
i.e.

Putting the value of  in
 in  .
.

 
        
             
        
        
        
Answer: 8
Step-by-step explanation:
 
        
             
        
        
        
drawing isn't shown, pls take a screenshot or photograph the exercise
 
        
             
        
        
        
Answer:
6 hours
Step-by-step explanation:
because if they work together it will be 9 hours slower than Kelsey's time alone. 
not sure if correct