Answer:
The use of symbols to represent ideas or qualities.
 
        
             
        
        
        
Answer:
4 hours
Step-by-step explanation:
Since we know he travels at a rate of 1:7.5 all we have to do is divide 7.5 by 30. Do you use proportions? You can set this up as a proportion and the find answer easily. 
1
Now we cross product. 
7.5 multipled by x  =7.5x
1x30=30 
so now we have 
7.5x=30
Now we have to divide 7.5 on both sides which gives us 
x=4
 
        
             
        
        
        
Answer:
44
Step-by-step explanation:
because yea