Answer:
-2 (x + 3z) + 4x - 3y + 2z
-2x-6x+4x-3y+2z
2x-4z-3y
hope it helps...
have a nice day!
 
        
                    
             
        
        
        
A. 15
b. 26
d. 41
e. 82
f. 98
h. 49
        
             
        
        
        
Answer:
Dan eat  pizzas
 pizzas
Step-by-step explanation:
Let
x-----> amount of pizza Jay ate
y-----> amount of pizza Dan ate
we know that
 ----> equation A
 ----> equation A
 -----> equation B
 -----> equation B
substitute equation A in the equation B and solve for y
 
 
Convert to mixed number
 
 
 
        
             
        
        
        
This question was answered but no solution was given. 
We already solve for the B or area of the triangular base which was 5.25cm².
There are 2 triangular faces in the prism so 5.25cm² x 2 = 10.50cm²
There are 3 rectangular face in the prism, we need to get the area of each.
area of a rectangle = length x width
rectangle 1: 5 cm x 4 cm = 20 cm²
same dimension with rectangle 2. so, area is 20 cm² also
rectangle 3: 5 cm x 2.8 cm = 14 cm²
let us all add up the area of each surface.
2 triangle = 10.50 cm²
3 rectangles = 20 cm² + 20 cm² + 14 cm² = 54 cm²
10.50 cm² + 54 cm² = 64.50 cm²