Is the sequence {81, 27, 9, 3, 1, …} arithmetic or geometric?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

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?

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show