Given: There are 7 billion, that is, 7*10^9
people on Earth. If a bird flu virus starts
with one person and within 5 days two
people are infected, then each of those two
people in 5 days infects 2 people each,
and so on, how many days before everyone
on earth is infected?
Hint: Geometric series and logarithms
I know this formula....N(t)= 1e(rt) but what would the rate (r) be?
how do i do this??