Question

If the population of an ant hill doubles every 30 days and there are currently 20 ants living in the ant hill, what will the ant hill population be in 90 days?

a.)160 ants

b.)8,000 ants

c.)320 ants

d.)80 ants

Answer 1

30th day -> 20x2 = 40
60th day -> 40x2 = 80
90th day -> 80x2 = 160
or
20 x 2^3 = 20x 8 = 160

Answer 2

simplify 3^4