There are 7 seniors on student council. two of them will be chosen to go to an all-district meeting. how many ways are there to choose the students who will go to the meeting? decide if this is a permutation or a combination, and then find the number of ways to choose the students who go.

Write 5 numbers that round to 740 when rounded to the nearest 10

Acircular city park has a sidewalk directly through the middle that is 111 - feet long. if each bag of fertilizer covers 50 square feet, then determine how many bags of fertilizers the parks and recreation department needs to use to cover the circular park. ignore all the sidewalks around and through the park.

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?