Answer: 
Commision rate 13% 
Explanation: 
The commission rate is equal to the commission as a percent of sells.
Now in our case, 
sells = $2700
commission = $351 
Therefore, the commission rate is equal to 
 
 
        
             
        
        
        
<h2>
The required "option B)  " is correct.
" is correct.</h2>
Step-by-step explanation:
You can refer figure:
brainly.com/question/4386376
To find, the value of x = ?
We know that,
Consecutive angles are supplementary
The diagonals bisect the angles.

Divided by 2 both sides, we get
⇒ 
⇒ 
⇒ 
⇒ 4x = 
⇒ 
⇒ 
∴ The value of x =
Thus, the required "option B)  " is correct.
" is correct.
 
        
        
        
Answer:
4b^-1
Step-by-step explanation:
16a/4 = 4a
4a/a = 4
4/b = 4b^-1
 
        
                    
             
        
        
        
Answer:
2916 ft³
Step-by-step explanation:
•the diameter of the sphere is 18 ft , to find the radius(r) you have to divide it by 2 ,
•which gives 9ft .
•And they also told you to take the value of pie as 3.
•So, substitute the values into the formula given for V and you will have your answer.
Hope I was able to help:)) 
 
        
             
        
        
        
Answer:
22.36
Step-by-step explanation:
20*.86=17.2
12 *.43= 5.16