Answer:
4000
Step-by-step explanation:
Your calculator can work this problem for you.
[tex]\dfrac{1.08\times 10^{15}}{2.7\times 10^{11}}=\dfrac{10800\times 10^{11}}{2.7\times 10^{11}}=\dfrac{10800}{2.7}=4000[/tex]
Dish A has 4000 times as many bacteria as dish B.