Help, please I would appreciate it.

Describe the domain and range of y=2(3)^x-2+5

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)

If the tip varies directly with the number of guest which equation represents between the tip, t, and the number of guest, g?