Step-by-step explanation:
I guess, the flower bed is a true rectangle, right ?
so, then, the perimeter of that rectangle is
2×length + 2×width = 2×78 + 2×60 = 156 + 120 = 276 in.
1 ft = 12 in
276 in = 23 ft
she can only buy a bundle of 40 ft.
that means she will have
40 - 23 = 17 ft left. 
 
        
             
        
        
        
Answer:
7 of the angles measure 144 degrees each and one angle measures 72 degrees
Step-by-step explanation:
Let
x -----> represent the measures of the seven same-size angles, 
x/2 ----> represent the measure of the one that is "two times smaller." 
we know that
The sum of internal angles of a polygon can be calculated as:

where
n is the number of sides of the polygon
In this case 
n=8 (octagon)
substitute

so
The linear equation that represent this problem is

solve for x

so

therefore
7 of the angles measure 144 degrees each and one angle measures 72 degrees
 
        
             
        
        
        
You could buy 135 MP3 songs.
($304.25 - $149 = $155.25 | $155.25 / 1.15 = 135)
        
                    
             
        
        
        
Answer:
An area or perimiter formula
Step-by-step explanation:
 
        
             
        
        
        
The answer is 12.48 hope this helps!