Respuesta :
Answer:
800,000
Step-by-step explanation:
If the bacteria double every 19 hours, and we have 76 hours, that means that the bacteria will double exactly four times.
50,000 x 2 = 100,000
100,000 x 2 = 200,000
200,000 x 2 = 400,000
400,000 x 2 = 800,000
