Answer:
8i + 4
Step-by-step explanation:
Add/subtract like terms:
7 - 3
= 4
-4i - (-12i)
-4i + 12i
= 8i
Add these together:
8i + 4
So, the simplified expression is 8i + 4
 
        
             
        
        
        
Answer:
b
Step-by-step explanation:
 
        
             
        
        
        
You've found the prime factorization when all of your factors are prime. They can't be divided into any smaller factors.
        
                    
             
        
        
        
Answer:
3.75 hours
Step-by-step explanation:
Given data
DIstance driven from Gary, Indiana to Indianapolis= 160 mile
Time taken= 2 1/2 hours or 2.5 hours
Speed= distance/time
Speed= 160/2.5
Speed= 64 miles per hours
We want to find the time it will take to drive 240 miles at the same speed
Time= distance/speed
Time= 240/64
Time= 3.75 hours
 
        
             
        
        
        
An inequality is with the >, <, or the =....... SO, initial one time reservation, you add onto the fee. 75 dollars each time, you pair that with c.
HOW IT SHOULD LOOK: 
50(at the start) + 75c(the money charged for each cleaning) ≤ B
THE REASON WHY: the maximum budget is pretty much all you can spend, so the cost of the cleaning, as it says in the LAST LINE.... should not be over the budget, but can be under.... so we use the less than or equal to sign. 
C is the number of leaning, 75 is the money charged for each cleaning, 50 is the initial cost of joining, and it should be added as part of the money you spent on the cleaning company....
and that's it