The answer is 21 because you do PEMDAS first. (8-8) is 0. And 0+21 is 21
We can expand

Then using the product and chain rules,



It has an infinite rotation symmetry because no matter how you rotate the object, it look the same.
Answer:
3 3/8
Step-by-step explanation:
Answer:
I'm not really sure what you're asking because there's no image.
Step-by-step explanation:
please try to reword it and maybe show a picture .