Answer:
yes, yes
Step-by-step explanation:
B={1,2,3} it doesn't matter if it has ten 2's or one!
so A=B and A⊆B
 
        
             
        
        
        
Answer:
x=-6 D
Step-by-step explanation:
easy
 
        
                    
             
        
        
        
Here we are given how much work is done in a fix time interval 
then they ask to find the rate of doing the work .
in such problem we can find the rate of doing a work by using the formula : 
 amount of work done 
 --------------------------------------------------- = work done in unit time 
 Time taken to do that amount of work 
In 40 minutes number of pages she reads = 50 
In 1 minutes number of pages she would be reading = 50 /40 
 = 5/4 page 
Answer 5/4 page .