Please help me on this its seems so simple but im dum

How many solutions does the nonlinear system of equations graphed below have?

Afootball is throw by a quarterback to a receiver

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.