1. Nintendo
2. A. True
3. A. Oscilloscope
        
             
        
        
        
Answer:
Percentage score will be 83.33 % 
Step-by-step explanation:
We have given Antonette gets 70 % on 10 problem test 
Let consider here here total problem = total marks 
So marks get 10 10 problem test = 10×0.7 = 7
Marks get in 20 problem test = 20×0.8 = 16
And marks get in 30 problem test = 30×0.9 = 27
Now total marks get get by Antonette = 7 +16 + 27 = 50
And total marks = 60
So percentage score of Antonette  %
 %
 
        
             
        
        
        
Answer:
45%
Step-by-step explanation:
45 boxes are shaded 
so percentage shaded is 45 out of the total which is 100
so 45 / 100 X 100
=45%
 
        
             
        
        
        
Answer:

Step-by-step explanation:
If you foil this equation you will get:

And by dividing it, you will get;

That is your answer!
 
        
             
        
        
        
the answer is 60 :) good luckStep-by-step explanation: