Final answer:
To find out the number of bacteria after each amount of time, multiply the initial number of bacteria by the tripling factor.
Step-by-step explanation:
To find out how many bacteria there will be after each amount of time, we need to understand that the colony of bacteria triples every hour. So, the number of bacteria after a particular time can be calculated by multiplying the initial number of bacteria by the tripling factor. Let's calculate:
a) After 1 hour, the number of bacteria will be 20 x 3 = 60 bacteria.
b) After 6 hours, the number of bacteria will be 20 x (3^6) = 7,200 bacteria.
c) After n hours, the number of bacteria will be 20 x (3^n).