D . A cube that is 1 inch long , 1inch wide and 1 inch high .
Answer
its a cube whose side is 1 unit long .
And total surface area should be 6 square units .
as we can see
Sam's solution is incorrect. the correct answer is x=3
Answer:
Step-by-step explanation:
a=2d+3
b=3d-12
c=a+b so
c=2d+3+3d-12
c=5d-9
B, and i don't for the second one
