The local school district ordered 755 decks of cards for teachers to use in their math classes. Each deck comes with 52 cards. How many cards are in all of the decks combined?

We just started the introduction into circles and i have no idea how to do this.

The first floor of marcus’ house is 1,440 square feet. he will cover 1,033 square feet with wood and the rest with tile. a box of tiles will cover 11 square feet. how many boxes of tile does marcus need to buy to cover the floor?

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?