You and your friend Doug love to go out to eat! On any given day when you and Doug are going to have lunch together, you have a 60% chance of going to Culvers and a 40% chance of going to Hubbard Avenue Diner. If you go to Culvers, you have a 70% chance of getting a burger, but if you go to Hubbard, your chances are only 10%. Draw a modified area model to fit this situation. Then find the conditional probability that you were at Hubbard, given that you got a burger.

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?

Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?

What is the gcf of 20c^3-5c^4+30c^6