In a certain city, the rate at which multiple births occur is 1 set of multiple births per 150,000 inhabitants (per month). A particular city has 450,000 inhabitants. (a) Find the probability that there will be at least 4 sets of multiple births in the city in a given month. (b) What is the probability that there will be exactly one month during the year in which the city will have at least 4 sets of multiple births?

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b.you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c.you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d.you spend $5 plus $10 per week until you have less than $45.

What is the missing value in the proportion 4/5 = x/30