Answer:
154 students 
Step-by-step explanation:
First get the total number of students .
This can be gotten by 
12% of A = 21
Where A represents the total number of students.
12% represents the % of A that chose to study French and 21 is the number of students that studied French .
Therefore,
12% /100% x A = 21
0.12 x A = 21
Divide both sides by 0.12 
0.12/0.12 x A = 21/0.12
A = 175
The total number of students is 175.
If 21 chose to study French their freshman year ,number of students that chose not to will be total number of students minus number of those who chose to study French.
That’s 
175 - 21
= 154
154 students chose not to study French their freshman year
 
        
             
        
        
        
Hello : 
f(r) = πr².... r  <span> <span>><span>  0
</span></span></span>the domain is : <span>] 0; + ∞[<span> </span></span> 
        
             
        
        
        
Answer:
half of it would be 45
Step-by-step explanation:
120 - 30 = 90
90 divided by 2 = 45
hope this helped! sorry if i didn't answer your question, i was a little bit confused on what you wanted us to solve:)
if u want to find the length of it, it would be 150 because 120 + 30 = 150
 
        
                    
             
        
        
        
Answer:The Last One
Step-by-step explanation:
 
        
                    
             
        
        
        
I would think he answer would be c. Yoga