63 in 4.5 hours
63 divided by 4.5 is 14 so
14 MPH would be your answer
        
                    
             
        
        
        
The diagonals are:
diagonal₁=2x+3y
diagonal₂=(x+8)+(2y+5)
We have to solve the following system of equations:
2x=3y
(x+8)=(2y+5)
We solve this system by substitution method:
2x=3y  ⇒x=3y/2
(3y/2 +8)=2y+5
3y+16=4y+10
-y=-6
y=6
x=3y/2=3*6/2=9
we obtain the measure of the diagonals:
diagonal₁=2x+3y=2*9+3*6=18+18=36
diagonal₂=(x+8)+(2y+5)=(9+8)+(2*6+5)=17+17=34
Answer: The longest diagonal is 36 units. 
        
             
        
        
        
Answer:
mica should have added 2 to 3 instead of 1
Step-by-step explanation:
 
        
             
        
        
        
Answer:
2(m + 4n)
Step-by-step explanation:
Given
2m + 8n ← factor out 2 from each term
= 2(m + 4n) ← in factored form
 
        
                    
             
        
        
        
Answer:
c
Step-by-step explanation: