What is the value of tan a? i'm confused

Itook a better photo of the question so y’all can see it i hope it’s a fine photo

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?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?