He is wrong because as long as they have the same terms/ variables behind the number it doesn’t matter about if it is positive or negative
Answer:
300000
30000
3000
300
Step-by-step explanation:
Use the zero's trick for 10's.
Answer:
V≈33.51
although I don't have an explanation, sorry, if you look up "how to find the volume of a sphere" on google, it will give you the answer