The given equations are 
 12x + 4y = 152 ...........1
 32x + 12y = 420 .....2
Multiplying equation 1 by 3 to make  coefficient of y same we have:
36x+12y= 456
32x+12y=420
Subtracting the two equations we have:
4x=36.
Dividing by 4 both sides 
x= 9.
Substituting x value in equation 1
12(9) + 4y = 152
108+4y=152
Subtracting 108 both sides: 4y=44.
Dividing both sides by 4.
y=11.
cost of the vegetarian lunch is $11.
In the equations, x represents the cost of a chicken lunch and y represents the cost of a vegetarian lunch.
 
        
             
        
        
        
2(x+6)=x(x+1)
2x+12=x^2+x
x^2-x-12=0
(x-4)(x+3)=0
x-4=0
x=4
x+3=0
x=-3
        
             
        
        
        
Answer:
hiii
Step-by-step explanation:
plz mark brainliest
 
        
             
        
        
        
The amount of RENT forgot to write is $ 50.
<h3>
What is Transaction?</h3>
A transaction is a completed agreement between a buyer and a seller to exchange goods, services, or financial assets in return for money.
Here, Total expected amount = $ 900
           Actual amount = $ 750
           Deposit forgot = $ 100
Amount of RENT = 900 - (750 + 100)
                               = 900 - 850
                              = $ 50
Thus, The amount of RENT forgot to write is $ 50.
Learn more about Transaction from:
brainly.com/question/14654194
#SPJ1