Find the difference between the roots of the quadratic equation x2−9x+20=0x2−9x+20=0

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?

Mr. t has been dating his girlfriend for one year nine months and six days how many hours has mr. t been in a relationship

The two cones below are similar. what is the height of the smaller cone?