Respuesta :

SamSamySamantha
So it started with 4,000
7 hours later it grew from 4000 to 5200,
We are gonna divide 5200 by 7 to get the germs per hour that grow/grew
Then mulitiply it by 9 and your answer is:

6,685

Hope this helps!
@SamSamySamantha

Otras preguntas