Answer:
40 degrees
Step-by-step explanation:
The 100 degree angle is supplementary to angle CED. This means CED will end up being 80 degrees. Since the angles in all triangles equate to 180 degrees 80 + 60 + angle D must equal 180 degrees. Therefore, angle D has to be 40 degrees. 
 
        
             
        
        
        
300, because 8x20=160 so 1 ounces= 20 calories 
 15x20=300
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
1)
total area = rectangle area + 2 triangle area
                 =  length * width = 2 (  * base * height )
 * base * height )
                 =  7.5 * 6 + 2 (   * 3 * 4 )
 * 3 * 4 )
                 = 57 ft²
2)
separate it into two rectangles:
length * width + length * width
   6  *   2  +  9 * 4
       48 cm²
3)
parallelogram area =  base * height
                                 = 20 * 25
                                  = 500 in²
 
        
             
        
        
        
Answer:
Small box: 270
Large box: 900
45s or 45·s
90l or 90·l
Step-by-step explanation:
45·6= 270
90·10=900