Please help me I will fail my teacher is not so goood

Country carpets charges $22 per square yard for carpeting, and an additional installation fee of $100. city carpets charges $25 per square yard for the same carpeting, and an additional installation fee of $70

What is the solution of sqrt x+2-15=-3

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)