The number of pencils is directly proportional to the cost. ... Two values x and y are inversely proportional to each other when their product xy is a constant (always remains the same). This means that whenx increases y will decrease, and vice versa, by an amount such that xyremains the same.
        
                    
             
        
        
        
Its not the first two, I’m having trouble seeing those bottom two and what they are.
3rd one: y=ln x
 
        
             
        
        
        
3 would be the volume  hopes this is good 
        
                    
             
        
        
        
Answer:
39
Step-by-step explanation:
65/5=13
13x3=39
 
        
                    
             
        
        
        
The parallelogram is 45 square meters. Multiply the base by the height. The triangle is 36 square meters. Multiply the base by the height and divide by two. Thus, the answer is 81.