Answer:
it increase and by 16.7
Step-by-step explanation:
 
        
             
        
        
        
Answer:
7.5
Step-by-step explanation:
 
        
             
        
        
        
2 rooms would be 62+42 which is 104
3 rooms would be 104+42 which is 146
4 rooms would be 146+42 which is 188
5 rooms would be 188+42 which is 230
6 rooms would be 230+42 which is 272
but these are the prices including the 20$
without the 20$ the prices would be
2 rooms is 84
3 rooms is 126
4 rooms is 168
5 rooms is 210
6 rooms is 252
        
                    
             
        
        
        
Answer:
18x^5y
Step-by-step explanation:
Divide 36 by 2 first : 18
since you are dividing, you subtract the exponents:
x^8 - x^3= x^5
y^4-y^3= y^1 but you usually just write y
 
        
             
        
        
        
 Answer:
1. a²-b²
2.4b² + 5ab/2 
Step-by-step explanation:
1:. it's a formula of a²-b² so, it can be solved like this and
 2: I'm not sure about 2nd one