Answer:
The correct option is 1. Fiona's first step is isolating constant 1.
Step-by-step explanation:
I took it on EDG
 
        
             
        
        
        
Answer:
2x + y = 15
Step-by-step explanation:
Total amount with Manuel = $15
Cost of apps = $2
Cost of song = $1
x = number of apps purchased 
y = number of songs purchased
Cost of apps × number of apps purchased + Cost of song × number of songs purchased = Total amount with Manuel
2*x + 1*y = 15
2x + y = 15
The linear equation that represents the combination of apps and songs manuel can purchase is 2x + y = 15
 
        
             
        
        
        
Answer:
<h2>y = 2</h2>
Step-by-step explanation:

 
        
             
        
        
        
Answer:
See below
Step-by-step explanation:
Equation 1:
Step 1:
6 : 9 = x : 54      Ratio
Step 2:
9x = 324     Multiply
Step 3:
36 small dogs       Divide
Equation 2:
Step 1:
6 : 9 = x : 12       Ratio
Step 2:
9x = 72     Multiply
Step 3:
8 small dogs   Divide
First Answer:
36 small dogs
Second Answer:
8 small dogs
Hope This Helps :)
 
        
             
        
        
        
Answer: -2a + 3b
Solution:
3b - 2a
Simplify 
= -2a + 3b