Answer:
A)60°
Step-by-step explanation:
a straight line is 180° then 
if a line bisect it in to a half it become 90°
then 
the exterior angle of a triangle is equal to the sum of two interior angles
this means 150°-90°=60°
 
        
                    
             
        
        
        
Answer:
x = 1 because when you multiply negative 2 by negative six you get twelve. when you multiply positive one by negative six you get negative six.
 
        
             
        
        
        
Answer: 4 7/20 gallons
Step-by-step explanation:
Gallons of soup made = 10 3/5
Gallons that was chicken noodle = 6 1/4
The gallons that wasn't chicken noodle will be:
= 10 3/5 - 6 1/4
= 10 12/20 - 6 5/20
= 4 7/20
Therefore, 4 7/20 gallons wasn't chicken noodle. 
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
-9x-27+12 = -6x-15-3x
0=0
D) the equation has infinitely many solutions