Answer:it should be a right triangle because
12.5²+30²=32.5²
area of the triangle=

 
        
             
        
        
        
This is false. Since space exploration has begun, cooperaion and goodwill has been devolped between nations. 
        
                    
             
        
        
        
Answer:
People breathe oxygen in and carbon dioxide out, but for a plant to make carbohydrates, the leaves take in carbon dioxide through the stomata on the leaf surfaces. From the stomata, the mesophyll cells use the carbon dioxide to combine it with water and light for photosynthesis.
 
        
             
        
        
        
Density is measured in mass per volume thus C would be the answer.
2.17 g / cm³