Ron is tiling a countertop. he needs to place 54 square tiles in each of 8 rows to cover the counter. he wants to ramdomly place 8 groups of 4 blue tiles each and have the rest of the tiles be white. how many white tiles will ron need?

Yuri, sam and dani had the same math homework last night, but none of them finished it. yuri finished 3/8 of her homework, sam finished 4/6 of her homework and dani finished 1/2. who finished the most math homework? who finished the least amount?

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?