J -60
-----------------------------------
        
                    
             
        
        
        
It works because 7 x 9 x 10 is the same thing as 7 x 90, since 9 x 10 is just 90. So basically he is just writing more but the answer will still be the same.
        
             
        
        
        
136,000,000/31,000= how many hours for the spaceship to reach mars
136,000,000/31,000/24= how many days for the spaceship to reach mars
136,000,000/31,000/24 is approx. 182.7 days or 183 days (rounded up b/c of "to the nearest day").
        
                    
             
        
        
        
Answer:
32b<1500
Step-by-step explanation:
a. the can spend up to 1500 but not more so it has to be less 
b= 46 bats
46x32= 1472<1500
 
        
             
        
        
        
Vertical stretch means the graph stretches upward, rising more rapidly than the original, the graph is steeper than the original.