Acertain bacterial culture is multiplying in a culture dish, doubling in size every 6 minutes. it takes exactly an hour to fill the whole dish. how long does it take to fill half the dish?
a. 54 minutes
b. 48 minutes
c. 30 minutes
d. 36 minutes

Sasha delivers newspapers to subscribers that live within a 4 block radius of her house. sasha's house is located at point (0, -1). points a, b, c, d, and e represent the houses of some of the subscribers to the newspaper. to which houses does sasha deliver newspapers?