Resposta:
8-
Q(t) =600*2^t
4800 =600*2^t
2^t =4800/600
2^t = 8
2^t= 2³
t=3 horas
Letra C
9-
N(t)=400*2^t
N(3)=400*2³
N(3)=400*8
N(3)=32000 bactérias
Letra A
