I’m not that smart i just get answers off the internet
        
             
        
        
        
Answer:
She gave 7 stickers.13+7=20.sarah has 20 stickers
Step-by-step explanation:
Divide 28 by 4
 
        
             
        
        
        
Here you go... please note the values are different on your y axis ☺️
 
        
        
        
Answer:
Step-by-step explanation:


Volume = 
find partial derivatives using product rule

i.e. 
Using maximum for partial derivatives, we equate first partial derivative to 0.
y=0 or x+y =6
x=0 or x+4y =12
Simplify to get y =2, x = 4
thus critical points are (4,2) (6,0) (0,3)
Of these D the II derivative test gives
D<0 only for (4,2)
Hence maximum volume is when x=4, y=2, z= 4/3
Max volume is = 4(2)(4/3) = 32/3
 
        
             
        
        
        
Answer:
the answer I got was 2878.3