Answer: D
 Frequency = 587.32 Hz
Step-by-step explanation:
One octave above has a frequency of 2 × 146.83 Hz = 293.66Hz (D4). Two octaves above has afrequency of 2 × 293.66 Hz = 587.32 Hz (D5)
 
        
             
        
        
        
Answer:
A
Step-by-step explanation:
Rectangular Pyramid
 
        
             
        
        
        
Answer:
Fewer than means that something is less than another thing. For example, the number 2 is fewer than the number 4. There's also this cool symbol that you can use instead of writing the words 'fewer than'. You could say for example 2<4. A fun way to remember which way the symbol points is to imagine it like an alligator, the number 2 is trying to eat the number 4 to grow! 
Step-by-step explanation:
Hope this helps!
 
        
             
        
        
        
Answer: 87.5
Step-by-step explanation: 1cm x 25cm = 87.5
 
        
                    
             
        
        
        
Great Question!
The last year part is extra information. 1200÷12 (months in a year)= 100
He will have to wash 100 cars each month.