Answer: 
15, 840.
Step-by-step explanation:
-HCM(GCM)
105's factor are 1, 3, 5, 7, <em>15</em>, 21, 35, 105.
125's factor are 1, 2, 3, 4, 5, 6, 8, 10, 12, <em>15</em>, 20, 24, 30, 40, 60, 120.
so, the answer is 15!
 
        
             
        
        
        
There would be four rows of 5. If he added one more row of desks he would have 25 desks. 
 Each line is a desk
 
I I I I I
I I I I I
I I I I I 
I I I I I 
        
                    
             
        
        
        
Answer:
A
Step-by-step explanation:
 
        
             
        
        
        
X = 45.
Since opposite exterior angles are congruent, you can set the 2 values equal to each other. When you solve for x, you should get 45.
        
             
        
        
        
Answer:
The measure of angle C is 
Step-by-step explanation:
we know that
If AB || DC 
then
 -----> supplementary angles by consecutive interior angles
 -----> supplementary angles by consecutive interior angles 
and remember that the sum of the interior angles in a trapezoid is equal to 360 degrees

step 1
Find the measure of angle D
 
 
substitute the measure of angle A
 
 
 
 
step 2
Find the measure of angle C

substitute the values

