<span>In this question you need to find the lowest common multiple. I like to
do it the factor tree way:<span>
<span>    
 15      
      9</span>
    /   \      
    / \
   3    5   
    3   3
See how there are both a 3 in the 15 factor tree
and there is at least on three in the 9 factor tree. So when you find the LCM,
you combine the two threes from the different factor trees like this:
3 x 5 x 3 = 45
So every 45 minutes the bus would be at the bus
stop together
Now simply add the 45mins onto the 1:25 
<span>Answer: 2:10  </span></span></span>
        
                    
             
        
        
        
1)
b: 3.75 since it is half of the segment that measures 7.5, this is proven because the line in the middle is a bisector of the top and bottom line indication that both half measure the same; 3.75
2) 15 not sure why
 
        
             
        
        
        
-3•-4=12, and -3+-4=-7. 
this will turn into 
(x-3)(x-4)
set them up to equal zero
x-3=0, x-4=0
solve
x=3, x=4
(a)
        
             
        
        
        
Answer:
that would be 1
Step-by-step explanation:
All of the terms is 1,2,y,and 4 and 1 is the first one.
 
        
             
        
        
        
Answer:
C. You would be finding the total distance. You arent finding the rate because there is no division, and we dont know how long it took hime to ride the original 5. The answer is C.