Answer:28000
Step-by-step explanation:it gains 8000 bacteria every 5 hours and there are 3 fives in fifteen times 8000*3=24000 then add 4000
Answer:
6400
Explanation:
so every 5 hours it gains 800 bacteria so 4800+800=5600 (hour 10)
and 5600+800=6400 (hour 15)
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