Respuesta :
Answer:
400 people attend the football game and 1600 people attended a concert, 400:1600
Step-by-step explanation:
If there are 400 people that attend the football game then 400 x 4 people will be at the concert and 400 x 4 = 1,600
200:800 could be one possible answer. 600:2400 could be one too. There are many of them.