It was complicated but I did it
A plastic skeleton is
Answer: B. a physical model.
The world has lots of different kinds of models. A mathematical model might be a ball travels according to the equation . This isn't that. A computer model would be a program that somehow simulates a skeleton in the computer, this isn't that either. Our skeleton is an actual physical model just like a model airplane.
Answer: A
Step-by-step explanation:
Answer:20.25
Step-by-step explanation:
If you do 81 divided by 4
I think Im not sure