Answer:
<u>240cm³</u>
Step-by-step explanation:
To find our answer we will <u>multiply</u> the <em>volume, width, and height</em>. 
4 · 20 · 3 = 240.  Therefore, <u>240cm³ is our answer.</u>  
<em>Have a good day!</em>
 
        
                    
             
        
        
        
Answer:
The zeros are 6,-5,9
Step-by-step explanation:
The factored form of the polynomial is given as:

To find the zeros of this function, we set f(x)=0 and solve for x.

This implies that:

We solve for x to get:

The zeros are 6,-5,9
 
        
             
        
        
        
Consider number 17. You know that
17=9+8.
Then for negative numbers you have the same rule (with respect to sign -):
-17=(-9)+(-8).
Since (-9)+9=9+(-9)=9-9=0, you have that 
-17+9=(-9)+(-8)+9=(-9+9)+(-8)=0+(-8)=-8.
Answer: -17=(-9)+(-8).
 
        
             
        
        
        
Answer:
Your answer is -5 
Step-by-step explanation:
On paper; 
 
        
             
        
        
        
I feel it should be 30 because x represents the number of lessons, and 30 is multiplied by that.