Question

Itens
A=3
B=4
C=5
D=6
E=7

Answer 1

Vamos là.

p(t) = 1000*2^(3t/2)

128000 = 1000*2^(3t/2)

2^(3t/2) = 128 = 2^7

3t/2 = 7

3t = 14

t = 14/3 = 4,67

t = 5 dias (C)