The diner sells 4 different sandwiches, 6 different drinks, and 3 different deserts. How many different orders could you place if you
decided to buy a sandwich and a desert?

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible