Answer:
   1.  (B)  73
   2. r = 15
Step-by-step explanation:
1. The sum of angles in a triangle is 180°.
   62° +45° +k° = 180
   k = 180 -107
   k = 73
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2. The sum of exterior angles of any polygon is 360°.
   4r° +7r° +5r° +8r° = 360°
   24r = 360 . . . . . . . . . . . . . collect terms, divide by °
   r = 360/24 . . . . . divide by 24
   r = 15
 
        
             
        
        
        
Answer:
yes i believe you are correct
Step-by-step explanation:
 
        
             
        
        
        
1. Quadrilateral, trapezoid 2. Quadrilateral, square, rectangle, trapezoid, rhombus, parallelogram
        
             
        
        
        
Y=4 because y is 4 all the time