If some one could answer this it would be great.

A population of bacteria is quadrupling in a glass of milk on the counter every half hour.

A)Write a function for this growth P(t), where "t" is in hours

B)Write a function for this growth P(t), where "t" is in minutes

c)If the current bacteria population is 250000, how many bacteria were there 58 minutes ago?

Thanks!