Answer:
Rate of change = 6 miles per hour
Step-by-step explanation:
Rate of change of the line is represented by the slope of the line.
Formula to get the rate of change is,
m = 
From the graph attached,
Given straight line is passing through two points (2, 12) and (4, 24).
Rate of change = 
                           = 
                           = 6
Rate of change of the line = 6 miles per hour
Therefore, rate of change of the graph will define the speed of Arlene. 
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Solve the following expression:

-Calculate  to the power of
 to the power of  :
:


-Calculate  to the power of
 to the power of  :
:


-Multiply both  and
 and  :
:


-Calculate  to the power of
 to the power of  :
:


-Multiply both  and
 and  :
:


-Calculate  to the power of
 to the power of  :
:


-Multiply both the  and
 and  :
:


Therefore, the final answer is  .
.
 
 
        
             
        
        
        
78, divide 390 by 5 which equals 78
        
                    
             
        
        
        
Answer:
x=6
Step-by-step explanation:
3(3x-8)=4x+6
First you would distribute the 3 on the L side to the parenthasies 
9x-24=4x+6
Then, you would subtract 4x from both sides because it is the smallest X value
5x-24=6
Add 24 to both sides (inverse operations)
5x=30
divide both sides by 5
x=6
 
        
                    
             
        
        
        
An acre is 43,560 ft² because the customary system hates you.
Let's find out how many square feet the parcel is so we can convert it into acres.
The area of a rectangle is its base times its height.
A = bh
A = 234 ft * 878 ft
A = 205,452 ft²
Divide by 43,560.
A ≈ <span>4.7165 acres. (round as needed)</span>