Answer:
location is in centre
charge is positive
mass is 99 percent mass of an atom
Answer:
Olá, boa tarde. Caso precise, estou a disposição para a realização de trabalhos acadêmicos, entre em contato comigo, Fernanda 21994321300Explanation:
81 because each person has 9 people to greet and there’s 9 people so 9x9=81
