Answer:
x=1 y=1
Step-by-step explanation:
Let's use the elimination method. 
3x+4y=7
2x-y = 1 (multiply both sides by 4)
8x-4y=4
3x+4y=7
(add both equations together)
11x=11
x=1
Plug x=1 into either of the equations
2(1) - y=1
2-y=1
2=1+y
y=1
 
        
             
        
        
        
Answer:
your day going so far so good 1 
 
        
                    
             
        
        
        
4 cupcakes because if you do 12/ 1/.. you do kcf = to 12 x 1/3= 4
your welcome
 
        
             
        
        
        
Answer:
Demand theory is an economic principle relating to the relationship between consumer demand for goods and services and their prices in the market. ... As more of a good or service is available, demand drops and so does the equilibrium price.