Answer:
A. 0.5
B. 0.32
C. 0.75
Step-by-step explanation:
There are 
- 28 students in the Spanish class, 
- 26 in the French class, 
- 16 in the German class, 
- 12 students that are in both Spanish and French, 
- 4 that are in both Spanish and German, 
- 6 that are in both French and German, 
- 2 students taking all 3 classes.
So, 
- 2 students taking all 3 classes, 
- 6 - 2 = 4 students are in French and German, bu are not in Spanish, 
- 4 - 2 = 2 students are in Spanish and German, but are not in French, 
- 12 - 2 = 10 students are in Spanish and French but are not in German, 
- 16 - 2 - 4 - 2 = 8 students are only in German, 
- 26 - 2 - 4 - 10 = 10 students are only in French, 
- 28 - 2 - 2 - 10 = 14 students are only in Spanish.
In total, there are 
2 + 4 + 2 + 10 + 8 + 10 +14 = 50 students. 
The classes are open to any of the 100 students in the school, so
100 - 50 = 50 students are not in any of the languages classes.
A. If a student is chosen randomly, the probability that he or she is not in any of the language classes is

B. If a student is chosen randomly,  the probability that he or she is taking exactly one language class is

C. If 2 students are chosen randomly,  the probability that both are not taking any language classes is

So,  the probability that at least 1 is taking a language class is

 
 
        
             
        
        
        
All you have to do is multiply those two numbers and whatever u get is ur answer
        
             
        
        
        
Answer:
15c+3b=66 and 25c+5b=110
Step-by-step explanation:
 
        
             
        
        
        
1) 0.5m . 2 = 1 meter 
2) 4.70$
3) (r^2) / 2 = 81/2 = 40.5m^2