Answer:
  or d = 3.61
 or d = 3.61
Step-by-step explanation:

 
        
             
        
        
        
Answer:47.25
Step-by-step explanation: it is 10.5 x the 4.5
 
        
                    
             
        
        
        
Answer:
8% of of the Us states have the names that start with W.
Step-by-step explanation:
We are told that, of the 50 states, 4 have names that start with letter W, and to figure out what percentage of U.S. states have names that start with the letter W, we need to know what what 4 is what percent of 50.
We figure this out the following way:
Percent = 
Percent = 8% 
 
        
             
        
        
        
Answer:
b. -1
Step-by-step explanation:
9=4a+13
-13    -13
--------------
-4=4a
4a/-4
a=-1