The bacteria Escherichia coli are commonly found in the human bladder. Suppose that 3000 of the bacteria are present at time t-0. Then t minutes later, the number of bacteria present can be approximated by:
N(t) = 3000(2)^t/20.
How many bacteria will be present after 10 min? 20min? 30 min? 40 min? 60 min?