Find the measure of angle x 123

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?

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?