E is 131 degrees (opposite angles are equal)
360-262=98
98/2 = 49
f and d both equal 49 degrees 
        
             
        
        
        
Answer:
1.46666666667
Step-by-step explanation:
calculator
 
        
             
        
        
        
Answer:
Yes
Step-by-step explanation:
Yes it is a function, because graph is intersecting y - axis only once. 
 
        
             
        
        
        
Answer:
20° and  90°
Step-by-step explanation:
Let 2x = measure of 1st angle
then 9x =  measure of 2nd angle
The sum of the measures of the angles of a quad is 360
200 + 50 + 2x + 9x = 360
250 + 11x = 360
11x = 110
x = 10
2x = 20°
9x = 90°
 
        
             
        
        
        
1981+25
Since she was born in the year 1981, and her son was born 25 years later so you add 25