So do you need help or are you asking people if they need help?
        
             
        
        
        
Answer:
3cm
Step-by-step explanation:
A parallelogram is  quadrilateral that has two pairs of parallel sides. The opposite sides  equal in length
Area of a parallelogram = base x height 
18cm² = 6cm x height 
height = 18cm² / 6cm = 3cm
 
        
             
        
        
        
Answer:
Yes.
Step-by-step explanation:
Because yes.
 
        
             
        
        
        
Answer:
-5.4c
Step-by-step explanation:
We're combining two "like" terms here.
It may make the problem easier to visualize if we write one of these terms over the other, as follows:
-2.6c 
- 2.8c
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Adding, we get:
-2.6c 
- 2.8c
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- 5.4c (answer)
 
        
             
        
        
        
Answer:
46.5
Step-by-step explanation:
convert 15 1/2 to 15.5
multiply it by 3 because it moves 15.5 milea every 1/3 of an hour