A.
because the total distance of every triangle 180. Add the two other angles so 42+ 57 =99. Then you have to subtract those two combined angles to find the missing one from the total distance, which is 180. 180-99=81. the answer is A. 81
        
             
        
        
        
1 yard = 36 inches
The fraction  (1 yard / 36 inches) has a numerator and denominator 
that are equal.  So the fraction is equal to ' 1 ', and we can multiply 
(26 inches) by it without changing any value.  That'll change the units 
of the '26 inches' to 'yards', which is exactly what we need.
(26 inches) x (1 yard/36 inches) = (26/36) yard
                                                 That's  13/18 yard, or  0.7222... yard.
        
             
        
        
        
Answer:
(3,12)
Step-by-step explanation:
you would put the 12 as y then 3×3=9+6=15 and 12 doesn't equal 15
 
        
                    
             
        
        
        
Answer:
a) None
b) (0, -2)
Step-by-step explanation:
The x-intercept is the point at which the line cuts through the x-axis, while the y-intercept in the point at which the line cuts through the y-axis.
a) The line does not cut through the x-axis, thus it has no x-intercept.
b) The line cuts through the y-axis at y= -2, making its y-intercept (0, -2).