Answer:
There are 400 possible zip codes in the Houston area 
Step-by-step explanation:
Here, we want to calculate the possible number of zip codes in the Houston area 
We have 5 digits to form
77 is the first two digits ( this is fixed)
For the third digit, we are selecting 1 number out of 0,3,4 or 5
This means 4 C 1 
The remaining digits can be any digits 
We have 0-9, a total of 10 digits 
The first will be 10 C 1 and the second last digit too is 10 C 1 
So the number of possible zip codes will be;
4 C 1 * 10 C 1 * 10 C 1
= 4 * 10 * 10 = 400 possible zip codes 
 
        
             
        
        
        
20 kg is about twent two (22) pounds 
        
                    
             
        
        
        
Answer:
28.07 and rounded to the nearest hundredth would be 28.10
Step-by-step explanation:
 
        
             
        
        
        
Answer: (-1,-1)
Explanation:
I added a picture