(6.4 x 10^8 meter/sec) x (1 km / 1,000 meter) x (3,600 sec/hour) = 
       (6.4 x 10^8 x 3,600 / 1,000)  km/hour  =  
                            177-7/9 km/hour
 
        
             
        
        
        
Answer:
10x-15
Step-by-step explanation:
First, do Abbey. Abbey= 5 hrs less than 3 Emily. 
Nathan spends twice as much as Abbey. Then you get 3x (Emily is x) -5 +x (for Emily) +6x - 10 (for Nathan. Add those. You get 3x+x+6x-5-10. I hope this is correct. 
 
        
             
        
        
        
30 x 0.05 = $1.5 is the answer
        
                    
             
        
        
        
Answer:
<u>(7.5-2.1) /2</u>
<u>If the shortest side measures 2.1 m</u>. 
<em>7.5-2.1 =5.4.</em> Then divide by 2 each side is 2.7m 
 
        
                    
             
        
        
        
You need to multiply 1 and 5 plus 2. 
and for 5 2/7 it would be 5 times 7 plus 2.
So...
5 2/7= 37/7
1 2/5= 7/5