A student burned Ms. Snow a club mix CD. Of the 20 songs, Ms. Snow found out that 4 of them aren’t school appropriate. What is the probability that the first two songs Ms. Snow randomly plays aren’t appropriate?

If the fed begins to buy treasury bills to counter a recession, we would expect to see a. an increase in the demand for money. b. a decrease in the demand for money c. an increase in the quantity of money demanded. d. a decrease in the quantity demanded of money, e. no change in the demand for money.

Alife insurance salesman sells on the average 3 life insurance policies per week. use poisson's law to calculate the probability that in a given week he will sell 2 or more policies but less than 5 policies? i just require an answer.

This is an ap world history question. i am working on a worksheet which has a vent diagram with each circle labeled either us or byzantine economy. the middle is the similarities. can someone explain to me the similarities and especially the differences between the two?