The missing number is 20.
<h3>What is the missing number?</h3>
Subtraction is the mathematical operation that is used to find the difference between two or more numbers. 
In order to find the missing number, subtract the total number of people who like science and mathematics from the total number of people who like science
38 - 18 = 20 
To learn more about subtraction, please check: brainly.com/question/854115
#SPJ1
 
        
             
        
        
        
Answer:
15/7
Step-by-step explanation:
15/7
15 of 7 is the same as 15 out of 7, or 15/7
<em>I hope this helps! :)</em>
 
        
             
        
        
        
Answer:
1st option
Step-by-step explanation:

note that the cube is only for c not a
 
        
             
        
        
        
Answer:
9/4
Step-by-step explanation:
9 out of 4 are blue, just flip the ratio.