Answer:
The answer is 11, hope i helped!
 
        
             
        
        
        
Answer:
5x4°x7
Step-by-step explanation:
5x°+2x-1 when x =4
5x4°+2x4-1
5x4°+8-1
=5x4°x7
 
        
             
        
        
        
Answer:
42sq
Step-by-step explanation:
        5:7
30 sq: x sq
30/5=6 sq for 1 of the ratio 
6*7=42 sq for 7 of the ratio
 
        
             
        
        
        
Answer:
37.5% decrease
Step-by-step explanation:
To find a relative percentage you generally follow the rule of part divided by whole.
$100 / $160 = .625 (62.5%)
So $100 is 62.5% of $160
To find the decrease we need to subtract 62.5% from 100%
100 - 62.5 = 37.5
 
        
             
        
        
        
Answer:
-11
Step-by-step explanation:
7 - 3 - 5 - 10 
4 - 5 - 10
- 1 - 10 
-11