Answer:28 hours
Step-by-step explanation:
2x7x2
 
        
                    
             
        
        
        
Answer:
$19.35
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
10^3
Step-by-step explanation:
any time you see a number for example 7^6 you always start with those first when you have a math question like the one on the screenshot
        
                    
             
        
        
        
Since they are similar, you need to find the ratio of similarity (I made up the term, there is probably a correct one that I can’t remember). 
If you divide 16/40, you’ll find that that ratio is 2.5. So then you just multiply 16 x 2.5. You’ll get 18. 
18 is the length of the top of the trapezoid. 
You set 18=2x+4 and solve it algebraically. Subtract 4 from both sides. 
14=2x
Divide by 2 and x=7
(You can also check that the ratio is right by 16/18 is the same decimal value as 40/45. You’ll get .88888...)
        
             
        
        
        
True. College graduates often spend more money on lottery tickets than those with only a high school education, hoping to win big to pay off student loans. Hope this helps!