What? Do you have a picture that reveals what you need help in?
        
             
        
        
        
Answer:
Step-by-step explanation:
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Find the total length in inches of one of the rolls:
15*12=180 inches.
Now multiply the length of one roll (180 inches) by 2 to find the total length:
180*2=360 inches.
Divide by the width of the strips to find the total number of strips:
360/9=40 strips
        
             
        
        
        
Length of 1 = 300 = 3 *10^2 nanometers
= 3*10^2/1*10^9 m
= 3*10^(2-9)
= 3*10^-7m
        
                    
             
        
        
        
Answer:
sorry i cant see the triangle can u describe it to me cause then i can edit my answer and put the right answer
Step-by-step explanation:
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