question 4 is A
question 5 is 43.6
question 5 showing work
how I would figure it out is 151-20 =131
then I would divide it by 3 for each day 
 _
131÷3=43.6
 
        
                    
             
        
        
        
Answer:
Pattern With Next 2 Terms: –243, 81, –27, 9, -3, 1
Pattern Rule: Start at -243. Divide by -3 each time.
 
        
             
        
        
        
Answer:
Step-by-step explanation:
I dont quite understand the problem but this is one way to solve it using completing the square:-
2x^2 + 8x - 12 = 0
2(x^2 + 4x) - 12 =  0
2((x + 2)^2 - 4)  = 12
2(x + 2)^2 - 8 + 8 = 12 + 8
2(x + 2)^2 = 20
 
        
             
        
        
        
Group and factor
group y's with y's and z's with z's
(y²-10y)+(10z-yz)
factor
y(y-10)+z(10-y)
force undistribute -1
-y(10-y)+z(10-y)
factor
(10-y)(-y+z)
(z-y)(10-y) or
(y-z)(y-10)
        
                    
             
        
        
        
The anwer is 3. The volume of a cube is lwh. 3 x 3 x 3 = 27