Man and sato we’re building a coffee table using 4 inch tiles. nan used 30 tiles and sato uses half as many. how many total tiles did they use?

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.