Answer:
The integer is -16 
Step-by-step explanation:
The first scuba diver is 23 feet below sea level. THe second is 7 feet closer.
23 - 7 = 16. He is still under sea level, so it would be -16
 
        
             
        
        
        
Answer:  The required value is

Step-by-step explanation:  The given functions are:

We are given to find the value of 
We know that, if s(x) and t(x) are any two functions of a variable x, then we have

Therefore, we have

Thus, the required value is

 
        
             
        
        
        
So just convert to a common form 
I will convert to decimal since 2 of them are already decimals
to conver 1 and 3/7 to decimal, just divide 3 by 7 using a calculator
1 3/7=1.43...
so 1.38, 1.43, 1.40
the greates is .43 then .40 then .38 so the order is 
least to greatest
1.38, 1.4, 1 3/7 or D
        
             
        
        
        
Answer: 3
This is the simplified way