Find the area of the following surface using an explicit description of the surface. the cone z squared equals 9 (x squared plus y squared ), for 0less than or equalszless than or equals12 the surface area is nothing. (type an exact answer, using pi as needed.)

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x − 8 y is greater than or equal to negative 5 over 2 times x plus 5 part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points) part b: is the point (5, −8) included in the solution area for the system? justify your answer mathematically. (4 points)