Answer:
   11.  your choices are correct
   12.  132°
Step-by-step explanation:
11. The given equations can be (re)written to slope-intercept form. Only those lines with a slope of 2 will be parallel to the given line.
   A: y = 2x -8 . . . . . slope = 2, an answer
   B: y = -2x +1 . . . . . slope = -2, not an answer
   C: y = -2x +7 . . . . .slope = -2, not an answer
   D: y = 2x +2 . . . . . slope = 2, an answer
   E: y = -2x -9 . . . . . slope = -2, not an answer
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12. The marked angles are supplementary, so ...
   (3x -6)° +(x +2)° = 180°
   4x -4 = 180 . . . . . . . . . . . divide by °, collect terms
   x -1 = 45 . . . . . . . divide by 4
   x = 46 . . . . . . . . . add 1
Now, we can find the angle of interest.
∠PQR = (3x -6)° = (3·46 -6)°
∠PQR = 132°
 
        
             
        
        
        
8/36 because:
8+16+12=36
and if you simplify it the answer will be 4/18 2/9
        
                    
             
        
        
        
Total number of hours she schduled to play the game = 3 hours.
 hours.
Let us convert mixed fraction into improper fraction

Duration of each round =  .
.
In order to find the number of rounds Nicole can play, we need to divide total number of hours by duration of each round.
 ÷
 ÷ 
Converting division sign into multiplication flips the second fraction.

Crossing out 12 by 4, we get 3 on the top of second fraction.


Because problem is about number of rounds.
So, total number of round would be 5.
 
        
                    
             
        
        
        
Answer:
6 and 7
Step-by-step explanation:
To evaluate f(3), substitute x = 3 into f(x) , that is
f(3) = 2(3) = 6
To evaluate g(f(3)), substitute f(3) = 6 into g(x)
g(6) = 6 + 1 = 7