a family of 100 ants invades your home. if its population increases at a rate of 20% per week, in how many weeks will there be 200 ants? 400 ants? and 800 ants?
n = 100 (1 + .20)^w
plug in n (number of ants), solve for w
log(n/100) = w log(1.2)posted by Scott
thank youposted by michelle