Answer:
 AREA:
 
 CIRCUMFERENCE:
 
Step-by-step explanation:
 The formula that is used to calculate the area of a circle is:
 
 Where "r" is the radius of the circle.
 The formula for calculate the circumference of a circle is:
 
 Where "r" is the radius of the circle.
 Then, you need to find the radius. This is:
 
 
 Substituting the radius, you get that the area and the circumference are:
 AREA:
 
 CIRCUMFERENCE:
  
 
 
        
                    
             
        
        
        
X=12 because you would sub the 3 on both sides
        
             
        
        
        
Jenna gets paid a total of 10.97 cents an hour<span />
        
                    
             
        
        
        
To find the slope of the graph you pick any piece of the line, and divide the vertical difference between its ends by the horizontal difference between its ends. If the graph is distance versus time then the slope represents the speed.
        
             
        
        
        
Answer:
The correct answer is: She bought 2 dress shirts and 5 t-shirts
Step-by-step explanation:
Let's marked dress shirts with x and t-shirts with y.
Now we will make equations to solve this problem:
x + y = 7  =>  y = 7 - x
40 x + 8 y = 120
When we replace y = (7 - x) in the previous equation we get:
40 x + 8 (7 -x) = 120  40 x + 56 - 8 x = 120  => 32 x = 120 - 56 =>
32 x = 64  => x = 64/32 = 2 => x = 2
y = 7 - x = 7 - 2 = 5 =>  y = 5
x = 2 dress shirts
y = 5 t-shirts
God with you!!!