An epidemic, resulting from a virus that is contagious at a rate of 50%
every 10 days, has hit Wheat Ridge High School. If 250 students have the
virus, how long will it be until the whole school is infected? (Assume the
school has 1500 students)
A) About 40 students
B) 6.25 days
C) 25 days
D) 38.68 days