Answer: 7
Step-by-step explanation:
 
        
                    
             
        
        
        
Oi  :)
1) There are 3 significant digits

2)
15 Mi/h  =  22 ft/s
3)

4)
There are 4 significant digitis. Leter C 
 
        
        
        
Answer:

Step-by-step explanation:
<u><em>Formulate</em></u>
<u><em /></u>
<u><em>Calculate</em></u>
<u><em /></u>
<u><em>Cross out the common factor</em></u>
<u><em /></u>
<u><em>Write </em></u> <u><em>as a mixed fraction</em></u>
 <u><em>as a mixed fraction</em></u>
<u><em /></u>
<em>I hope this helps you</em>
<em>:)</em>
 
        
             
        
        
        
Answer:
(x, y)=(3/4, 3)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
b
Step-by-step explanation: