Answer:378
Explanation: You have to do 54x7 which you will get 378, Just think , there is 7 groups of 54 kids in the school fild trip and then in the end of the day all these kids meet up, you get 378 kids
Answer: for the first 7 is
1) Preparo, prepararon
2) comio, comeran
3) sirvio, sirvieron
4) dio, dieron
5) estuvo, estuvieron
6) fue, fueron
7) i actually don't know sorry
for the other part is the same thing just add "no" at the beginning
<em><u>HOPE THIS HELPS YOU</u></em>
Explanation: