A motorist travelled from Ibadan to Lagos a distance of 142km at an average speed of 60km/h. he spent 2 1/2hours in Lagos and then returned to Ibadan at an average speed of 80km/h. At what time did he arrive in Ibadan? What is the average speed of the whole journey?

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)