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[stressedadfff]

hey guys does anyone know why the answer is c

 

[stressedadfff]

and also for prevalence would we take away mortality, as thats what my teacher said but the asnwer is incorrect when i do so?

and the followly please
View attachment 31377

 

[dasfas]

hey guys does anyone know why the answer is c
View attachment 31375

2 after 20mins, 4 after 40mins, 8 after 1 hour

 

[zizi2003_]

hey guys does anyone know why the answer is c
View attachment 31375

Every 20 minutes = 60/20 = 3 bacteria present
Because bacteria multiply by binary fission, 2^3= 8 bacteria will be present after an hour

And I can't seem to open the file attached for your second question