Exact Form:
8√5+14√3
Decimal Form:
6.36016748
        
             
        
        
        
The answer is 73 because you solve 9^ 2 which is 81 then multiply 2 times 4 which is 8 then subtract 81 and 8 which is 73
        
                    
             
        
        
        
The temperature was 1 because of you add them 
-11+12=1
        
                    
             
        
        
        
Answer:
17. is 20 18. is 9hours 19. is 60mph
you get this by doing 100 divided by 5 which equals 20 360 divided by 40=9 and 420 divided by 7 =60