Answer:

Step-by-step explanation:
1) Change the mixed fractions into improper fractions:
 
 
2) Multiply the first fraction by 2/2 and the second fraction by 5/5 in order to create common factors on the denominator (You can do this because you are essentially multiplying by one, for example 2/2 = 1):

3) Simplify the numerator(top part) while keeping the denominator(bottom part) the same:

 
        
             
        
        
        
The negation isn't always true, as you can be unhappy while also not being hungry. 
        
             
        
        
        
Answer:
3 ÷ 1/3 = 9
Step-by-step explanation:
= 3 ÷ 1/3
= 3/3 (3/1) ÷ 1/3
= 9/3 × 3/1
= 9/1
= 9
 
        
             
        
        
        
Answer:
A. Gasoline
Step-by-step explanation: