Bracket expansion or simplifying
        
             
        
        
        
Answer:
f(x)= 1.8x + 1
Step-by-step explanation:
Just got it right on edge :)
 
        
             
        
        
        
Answer:
1hr 5mins
Step-by-step explanation:
thanks. for the free points
3 17 to 4 17 one HR
4 17 to 4 22 5 mins
total is one hour plus five mins
so 1 hr 5 mins
 
        
                    
             
        
        
        
Answer:
5.58*10^7
Step-by-step explanation:
Recall that 10^a*10^b = 10^(a+b).  Thus, 10^5*10^2 = 10^7.
Thus, (1.8 x 10^5)(3.1 x 10^2) = (1.8)(3.1)*10^7 = 5.58*10^7
                             
 
        
                    
             
        
        
        
Given:

You know that:

In order to solve the operation, you can follow these steps:
1. Distribute the negative signs. Remember the Sign Rules for Multiplication:

Then:

2. Combine the like terms (add the Real Parts and add the Imaginary Parts):

Hence, the answer is: Option B.