Answer:
486
Step-by-step explanation:
Hello!
To find the surface area of a cube we use the equation

S is the surface area
a is the side length
Put what we know into the equation

Solve
S = 6 * 81
S = 486
Hope this Helps!
Answer:
.
Step-by-step explanation:
The equation is
y = 200+50x
This is not a proportional relationship because it does not go through the origin
If x=0, y does not equal 0
Answer:
X = 2
Step-by-step explanation:
Answer:
B) 12
Step-by-step explanation:
Opposite sides are congruent
If it is to match 3+1 which is 4 the value to satisfy X is -1