Atown has a population of 50,000 healthy people. a resident catches zombie infection on vacation. if the transmission rate is 0.0001 per day, how many people will this zombie infect on his first day in town?

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units