Homework questions help, solving system of equations, inequalities and graphing.

1. (4 points) Solve the system of equations by using substitution or elimination -5x - y = 2 4x + 3y =5 2. (6 points) Tickets to the school play costs $2 for children and $3 for adults. On Friday 350 people tickets were sold and they collected $950. Write the system of equations (Let x represent the children and y represent the adults). What number of children and what number of adults attended? 3. (4 pts) Graph the system of inequalities. - x - y