Answer:
Step-by-step explanation:
-5/4
 
        
             
        
        
        
No instructions?  I'll assume you want the unit rate.
4 miles in 36 minutes = 4/36 miles in 1 minute, or 1/9 mile in 1 minute.
1 3/4 mile in 20 minutes?  Multiply both figures by 3:
7 miles in 60 minutes, or 7 miles in 1 hour, or 7 mph.
        
             
        
        
        
Answer:
∠5 = 71° & ∠8 = 109°
Step-by-step explanation:
∠1 = ∠5 (corresponding angle)
∠5 = 71°
∠5 + ∠8 = 180° (angles in a striaght line is 180°)
71° + ∠8 = 180°
 ∠8 = 109°
 
        
             
        
        
        
Divide 18 by 2(9) then square that (81). add 81 to both sides
        
                    
             
        
        
        
2x + 12 = 18
18 - 12 = 6
2x = 6
x = 3