Answer:
Jennifer used $24-14=10 dollars in total.
The $10 was spend on five pens, each pen costing say, x, dollars.
The equation would be 10 = 5x
x = 10÷5= $2
So each pen costs $2 :)
Hope this helps! Feel free to ask below if you have any questions~ 
 
        
                    
             
        
        
        
Answer:
What you are looking at is a scalene triangle!
Step-by-step explanation:
By definition scalene triangles are triangles where each side is a different length... hope this one helps you!
 
        
                    
             
        
        
        
30 mins = 180°
15 mins = 90°
10 mins = 60°
1 min = 6°
hope this helps you
        
                    
             
        
        
        
30 is the least common multiple