Let A be the set of factors of 20, B be the set of factors of 30, C be the set of factors of 40, and D be the set of factors of 50.
The universal set is {1, 2, 3, 4, 5, 6, 8, 10, 15, 20, 25, 30, 40, 50).
1.
Write sets A through D using set notation.

What is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =