Phoebe divided her rectangle garden into 3 sections. one section is a square with a side of 7 meters and the second section is a square with a side length of 5 meters. what is the area , in square meters, of the third section of phoebe's garden?

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.