Answer:
i think its because if one of the models are broken or wrong they have a back up or just try to get better info then the others or just to get extra data.
Explanation:
How many students are there?
Answer:
Look up every word you do not know.
Explanation:
Looking up every word is a waste of time. If you familiarise yourself with common prefixes and suffixes, you'll be able to understand the meaning of many words without needing to look them up in the dictionary.
Most people recommend looking up words that you can't figure out at all.
1) my hamster
2) my backpack
3) the pledge
