Answer:
greater than 7 
Step-by-step explanation:
 
        
             
        
        
        
Responder:
$ 22
Explicación paso a paso:
Monto principal = $ 20
Tasa de interés = 10% = 10/100 = 0.1
Tiempo = 1 año
Cantidad ganada después de 1 año:
Principal (1 + (tasa de interés * tiempo))
$ 20 (1 + (0,1 * 1))
$ 20 (1 + 0.1)
$ 20 (1,1)
$ 22
Ganará $ 22 después de un año.
 
        
             
        
        
        
Answer:
 the length of each piece is 4.8 feet
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x=5
Step-by-step explanation:
So how i came about to get this answer, was
y=15-3x
y=15-3(5)
y=15-15
y=0
I found five by testing out different numbers for x such as 1 2 3 4, but when i got to five, that was where i got the answer, as shown above. 
<u>Do</u><u> </u><u>not</u><u> </u><u>forget</u><u> </u><u>about</u><u> </u>PEMDAS